Cannabis Laws in South Dakota: A Comprehensive Legal Guide

A cannabis plant cultivated under South Dakota’s medical cannabis program (Dakota Herb grow facility, Tea, SD)

South Dakota maintains strict cannabis laws, with recreational use remaining illegal and a tightly regulated medical program in place. This guide outlines the key legal provisions governing cannabis in South Dakota as of June 2026, including adult-use prohibitions and penalties, medical cannabis rules, business regulations, consumer restrictions, local ordinances, recent changes, enforcement trends, and historical milestones. All information is supported by South Dakota Codified Laws (SDCL), administrative rules, ballot measures, and official sources for clarity and reference.

Adult-Use (Recreational) Cannabis Laws

• Legality Status: Recreational (adult-use) cannabis is illegal in South Dakota. Possession, use, sale, or cultivation of marijuana without medical authorization is prohibited by law. In November 2020, voters approved a constitutional amendment to legalize adult-use cannabis, but the measure was invalidated in 2021 for violating the state’s single-subject rule^[1]. Subsequent attempts to legalize recreational marijuana via initiated measures have failed at the ballot: Initiated Measure 27 was rejected in 2022 (47.1% yes / 52.9% no) and Initiated Measure 29 was rejected in November 2024 (44.5% yes / 55.5% no) — two consecutive ballot defeats for legalization^[2][3]. Thus, non-medical cannabis remains unlawful statewide.
• Possession Limits and Penalties: Because recreational possession is not authorized, any amount of marijuana can result in criminal charges. State law prescribes graduated penalties based on the amount possessed:
  • Possession of 2 ounces or less of cannabis is a Class 1 misdemeanor, punishable by up to 1 year in jail and a $2,000 fine^[4][5].
  • Possession of more than 2 ounces up to 0.5 pound (8 ounces) is a Class 6 felony (up to 2 years imprisonment and $4,000 fine)^[4][5].
  • 0.5 to 1 pound is a Class 5 felony (up to 5 years and $10,000 fine)^[4][5].
  • 1 to 10 pounds is a Class 4 felony (up to 10 years and $20,000 fine)^[4][5].
  • Over 10 pounds is a Class 3 felony (up to 15 years and $30,000 fine)^[4][5].
    In addition, the court may impose a civil penalty up to $10,000 for any marijuana possession conviction^[4][5]. South Dakota’s laws are notably harsh – possession of any amount of cannabis concentrates, hashish, or infused edibles is charged as a felony (Class 5 felony, up to 5 years) rather than a misdemeanor^[1]. Possession of cannabis paraphernalia is a misdemeanor (Class 2) punishable by up to 30 days jail and $500 fine^[5].
• Home Cultivation: Home growing of marijuana for personal/recreational use is not allowed. There is no legal provision for non-medical individuals to cultivate cannabis plants, and doing so is treated as unlawful possession/manufacture. Growing even a single plant without authorization would likely be charged under the possession or distribution statutes, with penalties determined by the weight of cannabis in the plants. (By contrast, medical home cultivation is allowed on a limited basis – see Medical Cannabis section below.) Unauthorized cultivation could also incur separate charges for manufacturing a controlled substance, a felony under SDCL §22-42-2 or related laws.
• Age Restrictions: Because recreational cannabis is illegal for all ages, no person (including those 21 or older) may lawfully possess or use marijuana outside the medical program. Minors are likewise prohibited. If a person under 18 is caught with cannabis, they can face juvenile delinquency proceedings under these criminal statutes. Notably, distributing cannabis to a minor carries especially severe penalties. For example, giving or selling any amount to a minor is a felony (class varies by amount; e.g. distributing over 1 pound to a minor is Class 2 felony)^[6]. Even sharing a small amount (under ½ oz) with a minor without payment is a Class 6 felony^[6], reflecting South Dakota’s stringent stance on preventing youth access.
• Consumption and Public Use: It is unlawful to consume or ingest marijuana in any form as a recreational user. State law even criminalizes ingestion of controlled substances; South Dakota is unique in that testing positivefor cannabis (without a valid prescription or card) can itself be treated as an offense^[1]. Public use of marijuana is strictly prohibited. For example, smoking or consuming marijuana in a vehicle on a public highway is a Class 2 misdemeanor for both drivers and passengers^[7]. Specifically, it is illegal for a driver who is operating or in control of a vehicle on a public road to smoke or consume marijuana or marijuana concentrate while driving^[7]. Passengers are likewise barred from doing so in any moving vehicle on a public highway^[7]. In practice, this functions like an “open container” law for cannabis. Additionally, standard DUI laws apply to marijuana – driving under the influence of cannabis is punished equivalently to alcohol DUIs, and drivers can be convicted if impaired or if THC is found in their system under the state’s zero-tolerance approach^[8].
• Penalties for Violations: To summarize, any recreational cannabis offense can lead to criminal charges. Even low-level possession (under 2 oz) is a Class 1 misdemeanor – one of the most serious misdemeanor categories – punishable by up to a year incarceration^[4]. Unlike many states, South Dakota has not decriminalized small amounts, so a first-time offender with a personal-use quantity faces the possibility of jail time. Possession of larger amounts quickly escalates to felonies as noted. The law also provides mandatory minimum sentences for certain offenses: for example, a first felony conviction for distribution carries a mandatory minimum 30 days imprisonment (and at least 15 days for distribution of a small amount without remuneration)^[6]. These cannot be suspended by the judge. Repeat felony drug offenders face a mandatory minimum of 1 year in prison^[6]. In sum, recreational cannabis violations in South Dakota are treated severely, reflecting the state’s continued prohibitionist policy.

Medical Cannabis Laws

• Legalization and Framework: Medical cannabis is legal in South Dakota for patients with qualifying conditions, following the voter-approved Initiated Measure 26 in November 2020. The medical program took effect on July 1, 2021^[1][1]. The program is codified in SDCL Chapter 34-20G (Medical Cannabis)^[9]. Under this law, registered qualifying patients and their designated caregivers who comply with the program’s requirements are exempt from state criminal penalties for the medical use of cannabis^[10][10]. The Department of Health (DOH) administers the program, issuing registry identification cards to approved patients and caregivers.
• Qualifying Medical Conditions: To enroll, a patient must have a “debilitating medical condition” as defined by law. South Dakota’s definition includes a broad symptom-based category and specific diseases. By statute, a debilitating condition is one that produces cachexia (wasting syndrome), severe debilitating pain, severe nausea (other than pregnancy-related), seizures, or severe and persistent muscle spasms^[11][11]. Additionally, the law enumerates specific qualifying diagnoses:
  • Acquired immune deficiency syndrome (AIDS) or HIV positive status^[11]
  • Amyotrophic lateral sclerosis (ALS)^[11]
  • Multiple sclerosis^[11]
  • Cancer, if associated with severe or chronic pain, nausea or vomiting, or severe wasting^[11]
  • Crohn’s disease^[11]
  • Epilepsy and other seizure disorders^[11][11]
  • Post-traumatic stress disorder (PTSD)^[11][11]
    This list was expanded by the legislature in 2023 (via Senate Bill 1) to explicitly add several of the above conditions (HIV/AIDS, ALS, MS, Crohn’s, epilepsy, PTSD, and certain cancer symptoms) to the original voter-approved list^[12]. Notably, severe chronic pain, severe nausea, seizures, and muscle spasms are covered generally under the law’s symptom-based criteria^[11], giving physicians some flexibility to certify patients with other underlying illnesses that cause those symptoms. (The 2023 law also repealed the petition process that would have allowed adding new conditions via administrative petition^[12], meaning any further expansion of qualifying conditions now requires legislative action.)
• Patient Registration Requirements: To legally obtain and use medical cannabis, an individual must apply for and obtain a registry identification card from the Department of Health. The application must include a written certification from a licensed practitioner (MD, physician assistant, or advanced practice nurse) stating that the patient has a qualifying condition and that the practitioner believes the patient would benefit from cannabis^[13][11]. The patient (or their parent/legal guardian if a minor) must submit a state application form, provide proof of identity (e.g. driver’s license or other ID) and a photograph, and pay the required application fee^[13][13]. The standard patient card fee is $75, with a lower $20 fee for applicants who qualify as low-income (household income <130% of federal poverty level)^[13][13]. Cards must be renewed annually with a new certification and fee^[13]. South Dakota also allows non-resident cardholders – if someone holds a valid medical marijuana card from another state and has a condition that qualifies under South Dakota’s law, they are afforded the same legal protections as an in-state patient^[14][14].
• Possession Limits (Allowable Amount): A registered patient (or their caregiver) may possess up to an “allowable amount of cannabis” for medical use. By statute, this is defined as up to 3 ounces of cannabis (flower) plus a corresponding amount of cannabis products^[11]. The Department of Health, through administrative rules, sets the equivalent limits for other forms (concentrates, edibles, etc.) that equal the potency of 3 oz of flower^[11]. For example, DOH regulations (ARSD 44:90) specify maximum quantities of THC in concentrates or infused products that a patient can have at one time (ensuring it’s in line with a 3-ounce flower cap). Importantly, these limits are in addition to any cannabis a patient lawfully cultivates from their own plants (see next bullet) – patients can possess the harvest from their permitted plants at the same location where grown, even if it exceeds 3 ounces, as long as it stays on the grow premises^[11]. In public or during transport, however, the 3-ounce/product limit applies.
• Home Cultivation by Patients: South Dakota’s medical law allows certain patients to cultivate cannabis at home, with strict limitations. A patient must be specifically designated on their registry card as allowed to cultivate^[15]. This endorsement is obtained during the application process – the patient must apply for a “home cultivation” option and pay an additional fee (currently $20) and demonstrate the ability to grow in a secure facility^[15][13]. Qualified patients with this endorsement may grow up to 2 flowering cannabis plants and 2 non-flowering (immature) plants at a given time^[11]. All cultivation must occur in an “enclosed, locked facility” that only the cardholder (or their caregiver) can access^[11]. For example, plants must be kept in a locked room, closet, or greenhouse, indoors or otherwise enclosed, with security measures to prevent unauthorized access^[11]. Landlords are not required to allow cultivation on rental property, so tenants must obtain permission or risk violating lease rules^[16]. If multiple cardholders live together, they may share one secure grow space but still cannot exceed each person’s plant count limit^[11]. Aside from personal grows, non-cardholders cannot legally grow cannabis – any cultivation outside the medical program is illegal (as noted in the Adult-Use section).
• Purchases and Access to Medicine: Patients may obtain cannabis from licensed medical dispensaries in South Dakota (see Cannabis Business Regulations below). Each sale to a patient is recorded to ensure purchasing limits (tied to the allowable amount) are not exceeded within a given time period^[14][14]. All medical cannabis products must be purchased within the state’s regulated system, as transport across state lines is illegal. Patients and caregivers can legally transport medical cannabis in a vehicle if it is in a closed container and not being consumed; they should carry their registry ID card during transport. However, using cannabis in a motor vehicle is forbidden even for cardholders (e.g. a patient cannot smoke in a parked car on a public road)^[17]. Additionally, public consumption is prohibited for medical users just as it is for recreational – cardholders may only use cannabis in private locations. Smoking or vaping is not allowed in public places or on public transport^[17]. Patients under 21 are not permitted to smoke or vape cannabis at all, even for medical use (minors can use medical cannabis in other forms such as oils or edibles as directed)^[17].
• Product Forms and Potency: The medical law permits a range of cannabis products. “Medical cannabis” is defined to include “cannabis products” such as concentrated extracts, edibles, beverages, topicals, tinctures, and other preparations intended for human consumption^[11]. Dispensaries can sell flower (bud), pre-rolled cannabis, vape cartridges, oils, edibles, and so on, subject to testing and labeling regulations. All products must be in child-resistant packaging with proper labels. By law, dispensaries must ensure cannabis is tested for safety and potency by a licensed testing facility before sale^[18][14]. There is no statutory THC potency cap in South Dakota for medical products, but the Department of Health can set rules on allowable forms and dosages. For instance, DOH rules require that edible cannabis products cannot be modeled after familiar candies/foods that might attract children, and each edible dose must be clearly marked or sealed in a single serving. The universal THC warning symbol (a red triangle with “THC” exclamation) is required on packaging to indicate the product contains cannabis (per DOH regulations, as referenced in the image above)^[1]. South Dakota law and rules thus aim to prevent accidental ingestion and ensure patients know what they are consuming.
• Patient and Caregiver Protections: A registered patient or caregiver acting in compliance with the medical cannabis laws is protected from arrest and prosecution under state law^[10]. Specifically, SDCL 34-20G-2 provides that a cardholding patient is not subject to any civil or criminal penalty for the medical use of cannabis as long as they possess no more than the allowable amount and, if cultivating, they adhere to the enclosed locked facility requirement^[10][10]. Likewise, caregivers may assist their patients and be reimbursed for costs (but not profit) without legal penalty^[10]. The law also shields physicians and licensed practitioners from punishment solely for certifying patients for cannabis, and it protects medical professionals, landlords, schools, and employers from being penalized for accommodating lawful medical use^[14][14]. For example, a physician cannot be arrested or lose their license simply for writing a cannabis recommendation in good faith^[14]. However, these protections have limits – medical cannabis users can still face consequences for prohibited conduct (see Unauthorized Conduct below), and employers may enforce drug-free workplace policies in certain cases (the law does not require any employer to permit on-the-job use or intoxication)^[14].
• “Unauthorized Conduct” Restrictions: South Dakota’s medical statute explicitly lists actions that remain illegal or unprotected even for cardholders. Key prohibitions include: using medical cannabis in a correctional facility(prison/jail)^[17]; smoking or vaping cannabis in public places or on public transportation^[17]; undertaking any task under the influence of cannabis when it would constitute negligence or professional malpractice (for instance, a cardholder cannot operate heavy machinery at work while impaired)^[17]; and operating any motor vehicle, aircraft, train, or boat while under the influence of cannabis^[17]. The law also makes clear it does not require accommodations that would violate federal law or jeopardize federal funding – for example, employers in safety-sensitive industries can still prohibit cannabis use^[14]. In 2023–2024, additional restrictions were added: Practitioners are now forbidden from issuing medical cannabis certifications to pregnant or breastfeeding women (and “severe nausea associated with pregnancy” was explicitly excluded from qualifying conditions)^[12]. This followed concerns about health impacts on fetuses/infants. Patients who are on probation or parole must have their certifying doctor attest that cannabis is appropriate and consistent with standard of care for their condition before they can participate in the program^[19][19]. These measures reflect a cautious approach, ensuring medical cannabis is used responsibly and in medically necessary situations.
• Designation of Caregivers: A designated caregiver is an individual 21 or older who is authorized to assist a qualifying patient with obtaining and using medical cannabis^[11]. Caregivers must apply for their own registry card linked to the patient, pass a background check (no “disqualifying felony” convictions for violent crimes)^[11], and may serve up to five patients at a time (or more if they are an employee of a licensed healthcare or treatment facility where multiple patients are enrolled)^[11]. Caregivers can transport and administer cannabis for the patient and can also be permitted to cultivate plants on the patient’s behalf if so designated on their card^[15]. Like patients, caregivers acting within the law are protected from prosecution^[10]. They must comply with the same possession limits (aggregate for their patients) and must ensure cannabis is secured.
• Medical Cannabis and Other Laws: Possession or use of cannabis by anyone who is not a registered patient (or caregiver) is still illegal under the general drug laws, even if for purported medical reasons. A registry identification card provides the only shield against state criminal liability for cannabis. Patients should also be aware that cannabis remains federally controlled. On April 22, 2026, the DOJ/DEA issued a final order moving state-licensed medical marijuana and FDA-approved marijuana products from Schedule I to Schedule III (published/effective April 28, 2026); adult-use marijuana remains Schedule I, and a broader rescheduling hearing concluded on July 15, 2026^[20][21]. The change is federal and medical-only — its main effect is federal §280E tax relief for state-licensed medical operators; it does not legalize marijuana, alter South Dakota’s medical limits or penalties, or change federal firearms law. Federal possession bans can still have consequences (for example, using cannabis — even medically — generally makes one a prohibited firearms possessor under federal law). South Dakota law does not override these federal restrictions. Moreover, South Dakota does not permit reciprocal use of another state’s card beyond recognizing non-resident cards – i.e., an out-of-state patient cannot buy from a SD dispensary unless they become a SD non-resident cardholder through DOH, and South Dakota cardholders cannot transport products out of the state. Finally, having a medical card does not authorize distribution of cannabis to others. Selling or providing cannabis to someone who isn’t a cardholder (or to a non-registered minor) remains illegal. In fact, if a cardholder intentionally transfers or sells cannabis to an unauthorized person, it is a felony and their card can be revoked^[14][14]. Thus, diversion of medical cannabis into the illegal market is treated very seriously (e.g., a dispensary agent who deliberately sells to non-patients commits a felony and faces license revocation^[14]).

Cannabis Business Regulations (Medical Cannabis Industry)

• Regulatory Authority: South Dakota’s medical cannabis industry is regulated by the Department of Health (DOH) under the authority of SDCL Chapter 34-20G and administrative rules (ARSD 44:90). The law provides for several types of licensed medical cannabis establishments^[11][11]:
  • Cultivation Facilities: entities that grow cannabis plants and supply cannabis to other medical establishments (e.g. dispensaries or manufacturing facilities)^[11].
  • Cannabis Product Manufacturing Facilities: entities that produce cannabis extracts and infused products (edibles, concentrates, etc.) from raw cannabis^[11][11].
  • Testing Facilities: independent labs that test cannabis and cannabis products for potency (THC/CBD levels) and contaminants^[11].
  • Dispensaries: retail outlets that store and dispense cannabis and products to cardholding patients or caregivers^[11][11]. (South Dakota’s law uses the term “medical cannabis dispensary”for these patient-facing retailers^[11].)
    Collectively, these are referred to as medical cannabis establishments. All such businesses must be registered and licensed by DOH before operating^[14].
• Licensing Process: To operate any cannabis business, applicants must go through a state licensing process. The initial framework in IM 26 required DOH to begin accepting applications by mid-2021. Applicants apply for a medical cannabis establishment registration certificate for the specific license type (grow, dispensary, etc.). Key requirements include: providing a detailed application with ownership and operating information, paying the required application fee, undergoing background checks, and securing local approval if needed^[14]. By statute, all principal officers, owners, agents, and employees of a cannabis establishment must pass a criminal background check – anyone with a “disqualifying felony offense” (any violent felony) is barred from employment or ownership in the industry^[22][11]. Additionally, no employee can be under 21^[22]. The Department of Health has authority to set application and licensing fees by rule. Initially, the law capped licensing fees at a reasonable level (the voter measure suggested $5,000, subject to inflation). As of 2023, the state had an annual fee of about $5,000 for dispensaries (adjusted for inflation)^[23]. In 2023, lawmakers confirmed an annual fee structure for medical cannabis businesses, ensuring fees remain modest and linked to costs^[23].
• Local Involvement and Zoning: South Dakota law grants local governments (cities and counties) some control over cannabis business locations, but does not allow them to ban dispensaries outright. A county or municipality may not prohibit a medical dispensary within its jurisdiction by ordinance – any attempt to make operation “impracticable” or to flatly ban them is unlawful^[24]. However, local governments can use zoning and ordinances to “regulate the time, place, and manner” of cannabis establishments so long as they do not conflict with state law^[25]. For example, a city can dictate that dispensaries only operate in certain commercial zones, set hours of operation, or require setbacks (e.g. not within a certain distance of schools or churches). Many South Dakota cities have indeed enacted such zoning rules (500–1,000 feet from schools is common, aligning with state drug-free zone laws) and have limited the number of dispensary licenses allowed in city limits. The state law explicitly permits local caps on the number of establishments: a city or county can set a numerical limit (for instance, allowing only 2 dispensaries in town)^[26]. If more applicants apply than the local cap, the DOH will solicit input from the local government on which applicants they prefer for approval^[26]. Some municipalities have used lotteries to choose among dispensary applicants fairly^[27][27]. In sum, while at least one dispensary must be allowed per jurisdiction, locals can restrict how many and where they operate. Localities also may impose reasonable licensing requirements of their own (such as obtaining a city license) and enforce building, fire, and security codes on these facilities^[25][25]. Importantly, any local ordinance cannot conflict with state law or make compliance impossible – for example, a town could not require such excessive setbacks that no viable location exists, as that would be tantamount to a ban (disallowed by SDCL 34-20G-59)^[24].
• Operational Regulations and Compliance: All medical cannabis establishments must follow detailed state rules for security, record-keeping, testing, and other operations. The Department of Health promulgated administrative rules (ARSD 44:90) covering these standards. Key points include:
  • Security: Grow facilities and dispensaries must implement 24/7 security measures, such as alarm systems, video surveillance of all handling areas, and strict access controls^[18][14]. Only authorized staff and cardholders may enter certain areas, and extensive camera footage retention is required by rule.
  • Inventory Tracking: The state uses a seed-to-sale tracking system. Cultivators must tag and track each plant; all cannabis products are logged in a statewide electronic tracking system from cultivation through harvest, testing, and sale. This ensures that no illicit product enters the legal market and that all medical cannabis is accounted for.
  • Testing and Labeling: Before any cannabis or product is sold to patients, it must be tested by a licensed testing facility for cannabinoid potency and contaminants (pesticides, mold, etc.)^[18][14]. Products must be labeled with their THC and CBD content, along with a batch number that ties to lab results. Any product failing safety standards must be destroyed and cannot be sold. Dispensaries must keep records of all testing results and make them available to the state^[14].
  • Packaging: All medical cannabis items must be sold in child-resistant, tamper-evident packaging with the required warnings. Edibles and concentrates require additional warning labels (including the universal THC symbol and statements that the product is for medical use only and to keep out of reach of children).
  • Dispensing Limits and Records: Dispensaries are required to maintain confidential dispensing records for each patient^[28][14]. These records track how much cannabis each patient has purchased in the past rolling period (often 14 or 30 days) to ensure no one exceeds the legal “allowable amount.” The records are confidential but must be available for Department inspection and must interface with the verification system so that a patient cannot visit multiple dispensaries and exceed limits. By law, the DOH was required to establish a secure real-time verification system accessible by law enforcement and dispensaries to confirm the validity of a person’s card and track their purchase amounts^[14].
  • Prohibited Conduct: Cannabis establishments cannot allow on-site consumption (no sampling or lounges) – consumption on the premises of a dispensary or any medical cannabis business is forbidden by law^[14]. Dispensaries also cannot dispense to anyone who is not a registered patient or caregiver with a valid ID. Any intentional diversion (sale to unauthorized persons) carries stiff consequences: it is a felony and results in license revocation^[14]. Employees or businesses that commit serious violations or accumulate multiple violations of the rules can have their registration suspended or revoked by the Department^[14][14]. There are also specific criminal penalties for misconduct, such as making false statements or records to the Department (a felony)^[14] or breaching the confidentiality of patient information (a misdemeanor)^[14]. These provisions underscore that compliance is mandatory and violations can lead to both administrative and criminal repercussions.
• Taxation and Fees: Unlike some states, South Dakota’s medical cannabis law did not establish a special cannabis excise tax. Medical cannabis sales are subject only to standard state and local sales taxes. South Dakota imposes a state sales/use tax of 4.2% on goods, which applies to medical marijuana purchases^[29][29]. Municipal sales taxes (generally up to 2%) may also apply, depending on the locality. Patients thus pay roughly the same tax as they would on other retail products (around 4–6% total) – there is no additional marijuana-specific tax for medical sales. The state deliberately treats medical cannabis like a medicine or agricultural commodity rather than a sin-taxed product. For cannabis businesses, aside from licensing fees, normal state tax rules (income tax, which SD doesn’t have at the corporate level, and sales tax on sales) apply. If recreational cannabis had been implemented, Amendment A had envisioned a 15% excise tax on recreational sales, but since adult-use legalization was struck down, no such excise exists. All revenue from patient purchases is simply sales tax revenue to the state/general fund.
• Tracking and Prescription Monitoring: A recent change in 2024 requires integration of medical cannabis dispensing with the state’s prescription drug monitoring program (PDMP). Specifically, Senate Bill 42 (2024) mandated that the Department of Health submit each medical cannabis patient’s name and date of birth to the PDMP once they receive a card^[19]. The PDMP is a database traditionally used to track controlled substance prescriptions (like opioids) and prevent abuse. Now, doctors and pharmacists using the PDMP will be able to see if a patient is a medical cannabis cardholder. This does not list cannabis purchases, but it flags that the individual has access to cannabis. The rationale was to ensure healthcare providers are aware of a patient’s cannabis use for treatment coordination and to monitor any potential misuse. Another bill (SB 10 in 2024) requires that if the practitioner certifying a patient for cannabis is not the patient’s primary care provider, they must send an electronic notification about the certification to the patient’s primary doctor (or specialist treating the condition) so it can be noted in the medical record^[19]. These measures indicate an enforcement and public health trend of treating medical cannabis in line with other controlled medications for oversight purposes^[3].
• Oversight and Inspections: The law created a Medical Marijuana Oversight Committee originally composed of health officials, law enforcement, patients, and industry reps, to evaluate the program. In 2023, the legislature reconstituted this committee to include lawmakers (two Senators, two Representatives) and various stakeholders (one physician, one PA, one NP, one large-city police chief, one county sheriff, one addiction counselor, and one patient)^[12]. The committee’s role is to monitor the medical cannabis system and recommend improvements, particularly on medical and public safety aspects^[12]. Separately, the Department of Health has inspection authority: DOH inspectors may audit and inspect licensed facilities for compliance at any time (during business hours) without notice^[14][14]. Facilities must keep extensive records and make them available to inspectors, or risk penalties. In practice, regular inspections ensure proper security, accurate inventory counts, and adherence to all regulations.

Overall, South Dakota’s cannabis business regulations are stringent and designed to prevent diversion while ensuring that patients have safe access. There is no legal framework for any recreational cannabis businesses at this time – no licenses for recreational dispensaries or growers can be issued under state law as recreational use remains unlawful. All legitimate cannabis commerce in South Dakota falls under the medical program’s rules described above.

Individual Consumer Laws (Transport, Storage, and Personal Use Rules)

This section addresses practical rules for individuals possessing or using cannabis, whether as legal medical patients or illicit recreational users, focusing on transport, storage, and places of use:

• Transporting Cannabis: Only registered medical patients or caregivers may legally transport cannabis in South Dakota. When transporting medical cannabis, the individual should carry their registry ID card and keep the cannabis in a closed container. While the law doesn’t specify the container must be in the trunk, it is advisable to store cannabis in an inaccessible area of the vehicle (trunk or glove box) to avoid any appearance of consumption while driving. As noted, smoking or consuming cannabis in a moving vehicle is illegal for any occupant (Class 2 misdemeanor)^[7]. This applies to patients as well – medicating while driving (or riding in a car) is not permitted. If a patient needs to use an oral dose or tincture while on a trip, it should be done discreetly and not by the driver. For non-patients, transporting any amount of marijuana is unlawful; if caught, one could be charged with possession (and potentially “possession while operating a motor vehicle” which carries the same penalties but is explicitly criminalized to enable traffic-stop enforcement^[7]). Additionally, state police have the authority to enforce interstate transport prohibitions: bringing cannabis into South Dakota from a state where it’s legal (or vice versa) violates both state and federal law. Even medical patients cannot lawfully import products from another state or travel through South Dakota with out-of-state cannabis, since South Dakota has no reciprocity agreement beyond recognizing the individual’s status (the cannabis itself would be considered contraband if obtained elsewhere).
• Storage at Home: South Dakota law does not prescribe specific storage requirements for personal cannabis, but general safety principles (and certain related laws) apply. Medical cannabis must be stored securely to prevent access by unauthorized persons, especially minors. For patients, this often means keeping cannabis in a locked container or locked room at home. If the patient cultivates plants, the law requires those plants be in an enclosed, locked facility^[11] – by extension, any harvested cannabis from those plants kept at the grow site is secured. Patients are advised by DOH to store cannabis in its original labeled packaging and to utilize a locked box or safe for any excess product, particularly in homes with children^[30]. It is a crime to “inhabit a room knowing that controlled substances are being illegally stored or used there”, a Class 1 misdemeanor (SDCL 22-42-11)^[31]. This is aimed at crack houses, but theoretically could apply if someone willfully keeps cannabis in their home outside the medical allowances. While a medical patient’s storage of their lawful amount is not “illegal storage,” an individual storing illicit marijuana could implicate others in their household under that law. Hence, proper legal storage is critical. Patients should also heed any lease or rental rules; landlords may forbid possession of controlled substances on premises (though they cannot discriminate against a lawful medical patient’s status, they can enforce smoke-free or drug-free property policies)^[16].
• Consumption Rules (When and Where): Public consumption of cannabis is prohibited for everyone. Medical patients may only use their medicine in private locations. Using (especially smoking/vaping) cannabis in “any public place or any place open to the public” is not protected by the medical law and can lead to penalties^[17]. This means no smoking in streets, parks, restaurants, bars, public buildings, or common areas. Even patients cannot light up a cannabis cigarette on a sidewalk or in a public plaza – they could be cited or arrested for public use. South Dakota does not have consumption lounges or any social-use zones. Additionally, workplace use is generally forbidden unless an employer makes an accommodation. Employers are allowed to maintain drug-free workplace policies, and the law explicitly does not require them to permit cannabis use or impairment on the job^[14]. Many patients will consume edible or tincture forms if they need to medicate during work hours to avoid smoke and obvious impairment, but employers can still take action if the employee is unable to perform duties safely. Private property: an adult (21+) who is a patient can consume cannabis in a private residence out of public view. Homeowners can decide whether to allow smoking on their property. Renters should obtain permission if possible, since many leases ban smoking or drug activity. Caregivers may administer cannabis to a patient in the patient’s home or a medical facility, but facilities (like hospitals or nursing homes) are not required to permit it and often will not due to federal funding rules. Schools also are not required to allow on-campus use – a student who is a medical patient typically must go off campus for dosing or have a parent administer it off school grounds^[14][14]. In short, consumption is limited to private settingsand never while operating vehicles or in public view.
• Traveling with Cannabis: A South Dakota medical cannabis card is only valid within South Dakota. Federal law and other states’ laws come into play if traveling. It is illegal to carry any cannabis onto federal lands within the state (e.g., national parks or monuments like Mount Rushmore), as federal prohibition applies there regardless of state law. Likewise, transporting cannabis out of South Dakota to another state (even a neighboring legal state) violates federal interstate commerce prohibitions. Patients who need to travel often carry only the amount they need and keep it in original packaging, but they assume risk traveling to states without medical reciprocity. Notably, South Dakota law does recognize out-of-state medical marijuana cards: a nonresident with a valid card from their home state is protected from arrest in SD if their condition is one of SD’s qualifying conditions^[14]. However, South Dakota has no dispensaries that will sell to nonresidents (the nonresident would have had to somehow obtain South Dakota-certified product, which is generally not feasible). This provision mainly prevents visitors from being prosecuted for possession if they are valid patients elsewhere and have equivalent conditions. Overall, patients should avoid air travel with cannabis (TSA is federal) and should be cautious on road trips, particularly through federally patrolled areas.
• Alcohol and Firearms Considerations: South Dakota law prohibits consuming marijuana and then undertaking tasks that would be negligent – this includes driving as discussed, but also potentially things like hunting. The state’s hunting regulations, for example, consider it unlawful to hunt while intoxicated on any substance. As for firearms, while South Dakota doesn’t have a state law barring cannabis users from guns, federal law does (as mentioned, users of Schedule I substances are prohibited persons under 18 U.S.C. §922). The standard ATF background check asks about unlawful drug use, which includes marijuana use even if state-legal. Patients are thus put in a precarious position regarding gun ownership. This is a point of caution for individual patients, though not codified in state law.

In summary, individuals must treat cannabis with care and confidentiality. Medical patients enjoy legal protections to possess and use cannabis, but they must do so privately and responsibly. Non-patients have no lawful possession rights and face criminal exposure if they transport or use cannabis. South Dakota’s rules emphasize that cannabis should not be visible or used publicly, that driving under the influence is strictly forbidden, and that all use should occur in secure, private environments.

Local Ordinances and Additional Local Restrictions

South Dakota’s state laws are generally uniform across all counties and cities, but local governments have enacted ordinances to fine-tune how cannabis is handled in their communities (within the limits of state law):

• Medical Dispensary Zoning and Caps: As noted in the Business Regulations section, cities and counties can regulate the location and number of medical cannabis establishments. For example, Sioux Falls, the largest city, limited dispensaries through a local licensing process and required 1,000-foot buffers from schools and 500-foot buffers from parks or childcare centers. It also held a lottery to award a limited number of dispensary licenses in 2021. Rapid City enacted similar zoning restrictions and a cap on dispensaries. These local rules are allowed as long as they don’t completely ban dispensaries. The state law (SDCL 34-20G-58) explicitly grants municipalities authority to impose time, place, and manner restrictions – this includes hours of operation, signage rules (e.g., banning cartoon graphics or neon pot leaf signs), security requirements beyond state minimums, odor control measures, etc., to fit community standards^[25][25]. Municipalities also set their own procedures for granting local approval to cannabis businesses (some require public hearings or notices to neighbors before a dispensary opens).
• No Local Recreational Legalization: Local governments cannot legalize recreational cannabis on their own. They are creatures of state law and must enforce state criminal statutes. Thus, no city or county in South Dakota has decriminalized marijuana possession by ordinance. In some states, cities have made possession a lowest law enforcement priority or a civil fine – that is not common in South Dakota. All jurisdictions continue to treat marijuana possession under the state’s criminal classifications. However, a few city police departments have discretion in enforcement; for instance, the Sioux Falls Police Department may opt to issue a summons for small first-time possession rather than make a custodial arrest, but the charge is still a Class 1 misdemeanor under state law. There have not been any formal local measures (like a city referendum) to lower penalties due to state preemption.
• Local Consumption Bans: Even though state law already bans public use, some cities have passed ordinances to reinforce this. For example, a city might have an ordinance against smoking in city parks or against “ingesting illegal substances in public.” These mirror state prohibitions but give local code enforcement an additional tool (often as a petty offense or infraction). For medical cannabis, local housing authorities or public facilities can ban use on their property. Apartment complexes and rental properties in various cities commonly include lease clauses prohibiting any marijuana on premises (medical or not), and given landlords’ rights under SDCL 34-20G-27(3), they can lawfully refuse to allow cultivation or smoking of cannabis on their property^[16]. Some compassionate landlords do accommodate non-smoking medical use (like oils or pills), but it’s case by case.
• Law Enforcement Priorities: While not an ordinance, it’s worth noting that some county sheriff’s offices and city police announced after the 2020 votes that they would focus on large-scale distribution rather than personal use. For instance, Pennington County (Rapid City) law enforcement indicated personal use cases might be given citations, whereas trafficking would be targeted for arrests. However, statewide data shows enforcement remained robust. In 2018, prior to medical legalization, nearly 10% of all arrests in SD were for marijuana, mostly simple possession^[32]. By 2022–2023, those numbers dipped slightly due to the medical program (patients came off the arrest rolls), but non-patient arrests continued. Local police and sheriffs still routinely enforce possession laws – South Dakota has a culture of strict law enforcement, and local authorities have not generally “de-prioritized” marijuana to the extent seen in some other states.
• Additional Local Measures: No locality has expanded rights beyond state law. For example, no city allows recreational use or has its own licensing for non-medical cannabis. A few municipalities proactively set up ordinances to deal with public nuisances related to cannabis (e.g., odor complaints). If a neighbor’s home cultivation (for medical) produces a strong odor, some city nuisance codes might address that (though state rules require indoor grows which helps with odor). Local education campaigns have also been undertaken – some city governments and local health boards, like in Brookings and Yankton, have run public information efforts about the new medical cannabis rules, reminding residents that recreational use is still illegal and that youth use is harmful.

In summary, local ordinances supplement state cannabis law primarily by regulating the medical cannabis industry’s presence and by ensuring cannabis is not used or misused in public settings. They cannot legalize what the state forbids, so the overall legal status of cannabis is consistent statewide. Patients and businesses should always check city or county regulations in addition to state law to ensure compliance with permitting, zoning, and operational rules specific to their location.

Recent Changes (2023–2026 Updates)

South Dakota’s cannabis laws have continued to evolve in the years 2023–2026, primarily refining the medical program and fending off attempts to restrict or repeal it, while recreational legalization remained rejected at the ballot:

• 2022 Recreational Measure Failure: After the invalidation of the 2020 recreational amendment, advocates placed Initiated Measure 27 (2022) on the ballot to legalize adult use via statute. In the November 2022 election, IM 27 was rejected by voters (approx. 52.9% “No”), marking a setback for legalization efforts^[1]. This reflected a swing in public sentiment or campaign effectiveness compared to 2020. The failure meant recreational cannabis remained illegal. Advocates cited low youth turnout and opposition campaigns for the defeat. Learning from this, pro-cannabis groups attempted to regroup for future elections.
• 2023 Legislative Tweaks to Medical Program: In the 2023 session, the legislature (which has generally been cautious if not hostile to cannabis) passed a series of bills fine-tuning the medical cannabis law:
  • SB 1 (2023) – Qualifying Conditions: This officially added several conditions to the statutory list of debilitating medical conditions (ALS, MS, Crohn’s, epilepsy, PTSD, HIV/AIDS, and specific cancer symptoms), which in practice aligned the law with what many physicians already considered covered by the broad criteria^[12]. More significantly, SB 1 repealed the petition process that had allowed the public to petition the DOH to add new conditions via administrative rule^[12]. Lawmakers argued that the legislature should control any expansion of conditions, not an unelected board. As a result, patients with conditions outside the enumerated list (or symptoms list) have a higher hurdle to get the law amended.
  • SB 134 (2023) – Oversight Committee Membership: This changed the composition of the Medical Marijuana Oversight Committee, removing some agency officials and industry reps and instead including more law enforcement and medical professionals (as described earlier)^[12]. The aim was to bring a more skeptical eye to the program’s implementation. The committee’s duties were also updated (via HB 1132 in 2023) to focus on medical and clinical aspects and report any recommended changes to the legislature^[12].
  • SB 24 / HB 1154 (2023) – Preventing “Cannabis Mills”: These measures targeted potential abuse in the physician certification process. One provision prohibits practitioners from offering any discounts or financial incentives to patients for seeking a cannabis certification^[12]. Another forbids conducting patient evaluations for cannabis in any location licensed to sell alcohol (preventing “clinic days” at bars, for example)^[12]. Practitioners also cannot charge patients different amounts based on how long the certification lasts (previously, some clinics charged more for a 12-month cert vs a 3-month cert)^[12]. Violations of these provisions by a clinic or practitioner were made a Class 2 misdemeanor, and any entity (even non-medical) offering inducements for patients to get certified also faces misdemeanor penalties^[12][12]. These changes were responses to concerns that certain providers might issue cards too freely or for profit motives. By imposing criminal penalties and professional discipline for conflicts of interest or unsound practice, the state tightened the medical authorization process.
  • HB 1053 (2023) – Pregnant/Breastfeeding Restrictions: This law, referenced earlier, prohibited issuing a medical cannabis certification to any woman known to be pregnant or breastfeeding^[12]. It also explicitly stated that pregnancy-related nausea does not qualify as a “debilitating medical condition”^[12]. This was a somewhat controversial move, as it overrides physician discretion, but lawmakers cited protecting infants from THC exposure.
  • HB 1150 (2023) – Fee Waivers: This created a narrow fee waiver for certain patients – if a patient’s practitioner certifies them for a very short duration (60 days or less), the $75 card application fee can be waived^[12]. The idea was to not burden terminally ill or short-term patients with fees for a card they might use only briefly. However, only one fee waiver can be claimed per patient per year^[12].
  These 2023 changes went into effect on July 1, 2023 (except where noted). The cumulative effect was a more regulated medical environment with greater legislative oversight and prevention of perceived abuses.
• 2024 Legislative Changes: In the 2024 session, additional adjustments were made:
  • SB 10 (2024) – This requires that if the doctor issuing the cannabis recommendation isn’t the patient’s primary care doctor or the specialist treating the condition, they must notify the primary/referring physician of the certification^[19]. This is to ensure the patient’s entire care team knows about the cannabis use, fostering better overall care coordination.
  • SB 11 (2024) – This bars a certifying practitioner from referring patients to a specific cannabis dispensary or clinic if the practitioner or their immediate family has a financial interest in that entity^[19]. In short, doctors cannot funnel patients to a particular cannabis business they stand to profit from.
  • SB 42 (2024) – As discussed, this requires DOH to input patient data into the state Prescription Drug Monitoring Program database^[19]. Implemented in mid-2024, it marked a significant step in treating medical cannabis akin to other controlled medications for monitoring purposes^[3].
  • SB 191 (2024) – This imposed the requirement for extra attestation by doctors for patients on probation or parole^[19][19]. Essentially, if someone is under supervision of the criminal justice system, the doctor must formally assert that cannabis is appropriate and necessary for that person, considering alternatives. This was done to address prosecutors’ concerns that individuals might use medical cannabis to circumvent drug restrictions in probation (judges can still forbid a parolee from using medical cannabis, but this law adds a medical safeguard as well).
  • HB 1055 (2025) – In-Person Exam Requirement: Effective July 1, 2025, South Dakota now requires an in-person physical examination at the initial certification to establish a bona fide practitioner–patient relationship before a patient can be certified for medical cannabis (telehealth alone no longer suffices for the first certification, unless the patient was referred by another qualifying practitioner who already conducted such an exam)^[33][34]. This continued the Legislature’s pattern of tightening the certification process.
  • Budget and Fee Adjustments: The DOH requested and received funding to improve the online medical cannabis registry systems, indicating the program’s growth. The annual licensing fee for establishments was adjusted for inflation (capped originally at $5,000, it rose to about $5,300 by 2024)^[23]. No new taxes were levied, but the legislature did ensure that sales tax from medical cannabis continues to be collected (a proposal to exempt medical cannabis from sales tax – treating it like a prescription drug – was floated but did not pass in 2024, meaning patients still pay the normal sales tax).
• 2024 Recreational Ballot Initiative: Despite the 2022 loss, activists regrouped for another attempt at legalizing adult use in the 2024 general election. A campaign under the group “South Dakotans for Better Marijuana Laws” aimed to put a similar measure on the November 2024 ballot. They obtained signatures and the measure went to voters. However, voters in 2024 again rejected recreational marijuana – marking the second consecutive defeatat the ballot box for legalization^[3]. This outcome in November 2024 surprised some observers, given that 2020’s Amendment had passed. Possible reasons include shifting voter demographics in off-year elections, strong opposition messaging (an organization named “Protecting South Dakota Kids” ran extensive ads linking marijuana to negative outcomes^[3]), and voter fatigue or confusion. The 2024 initiative’s failure reaffirmed that, at least for now, South Dakotans (or the voting majority) are not ready to legalize recreational use again. As a result, any future changes on that front would likely be pushed to a future election cycle or require legislative action (which is seen as unlikely under current political leadership).
• 2026 Session – Repeal/Restriction Attempts Rejected: In the 2026 session the Legislature again declined to roll back the voter-approved program. On February 11, 2026, the Senate Health and Human Services Committee voted down two bills: SB 181, which sought to close the medical cannabis program (it would have eliminated the program after federal rescheduling of marijuana), and SB 194, which sought to restrict the cannabis product types available to patients via THC-potency caps. The committee rejected the repeal bill 7–0 and the potency bill 6–1^[35][36]. With more than 18,000 South Dakotans registered in the program, the Department of Health testified against the repeal, and both measures died in committee — the second straight session in which repeal legislation failed^[35].
• Governor and Agency Actions: Former Governor Kristi Noem, an outspoken opponent of the 2020 cannabis measures, shaped early implementation of the program; her administration, through DOH and public safety agencies, implemented the medical program but often with a cautious tone. Noem resigned in January 2025 to become U.S. Secretary of Homeland Security, and Lt. Gov. Larry Rhoden succeeded her as governor^[37]; the Rhoden administration has continued the program under similar oversight. In 2023, the DOH issued new administrative rules (with input from the oversight committee) to tighten packaging and labeling requirements and to clarify that Delta-8 THC products are included as “cannabis products” regulated under the program (to prevent unregulated sales of Delta-8, a hemp-derived cannabinoid). The Department of Public Safety and Highway Patrol also updated training for officers on determining impairment and on the new medical ID cards (so patients are not wrongfully arrested). In late 2024, DOH announced that as of Jan 1, 2025, any pesticides used in cultivation must be applied by a licensed pesticide applicator (a new requirement in collaboration with the Department of Agriculture)^[27]. This was to ensure product safety and environmental compliance. All these administrative updates indicate an ongoing refinement and normalization of the medical cannabis program.
• Effects of Changes: By 2025–2026, South Dakota’s medical cannabis patient count grew steadily, surpassing 18,000 registered patients according to DOH data^[38][35]. The legislative tweaks in 2023–24 arguably made the program more conservative (e.g., no pregnant patients, tighter doctor rules) but also more integrated with general healthcare (PDMP inclusion). Enforcement data showed a slight decrease in overall marijuana arrests, likely because some previous offenders are now patients and because law enforcement may be exercising discretion for small amounts. However, possession without a card is still fully prosecuted. The state also saw its first full calendar year of medical cannabis tax revenues – a few million dollars in sales tax – which, while not huge, contributed to the general fund. Lawmakers in 2025 discussed using some of this revenue to fund drug education or law enforcement training, but no dedicated fund has been established yet.

In summary, 2023–2025 brought incremental but important changes: the medical program was fine-tuned for tighter control and better integration into healthcare monitoring, and recreational legalization efforts stalled as voters narrowly defeated new initiatives. South Dakota’s cannabis landscape in 2025 is thus one of a functioning medical system under careful oversight, with recreational use still prohibited and little appetite in the legislature to revisit that after the recent voter decisions.

Enforcement Trends and Criminal Justice

Enforcement of cannabis laws in South Dakota reflects the state’s historically tough stance, though the advent of medical cannabis and shifting public attitudes have begun to influence trends:

• Arrest and Prosecution Data: South Dakota has traditionally had one of the highest per-capita marijuana arrest rates in the nation. In the late 2010s, arrests for cannabis possession were exceedingly common – nearly 1 in 10 arrests statewide was related to marijuana (as of 2018)^[32]. From 2009 to 2018, there were over 31,000 marijuana arrests in the state^[32]. The overwhelming majority (~95%) of those were for simple possession, not sale or trafficking^[32]. These statistics underscore that South Dakota aggressively enforced even low-level marijuana offenses, contributing to jail overcrowding and drawing criticism from reform advocates. The ACLU’s 2020 report noted South Dakota’s marijuana arrest rate (per 100,000 population) was among the top in the country and highlighted racial disparities (Native American and Black residents were significantly more likely to be arrested for cannabis than whites, even though usage rates are similar).
• Post-2021 Trends: After the medical cannabis law took effect in mid-2021, one immediate change was that registered patients were no longer subject to arrest for possession of up to 3 ounces. Law enforcement agencies received training on recognizing the new ID cards and respecting patient rights. This has had a modest impact on arrest numbers – some individuals who previously would have been arrested for possession are now lawful patients. By the end of 2022, state crime data showed a slight dip in marijuana possession arrests compared to prior years (likely a few hundred fewer arrests), largely attributed to the medical program. However, those without medical authorization continue to be arrested at similar rates. In many rural counties, sheriffs report that marijuana arrests only dropped for those who got their cards, and everyone else caught with cannabis still faces charges. South Dakota has not enacted any broad decriminalization, so even a first-time offender with a small amount (e.g. a single gram) can be arrested and charged with a Class 1 misdemeanor. Some prosecutors may use diversion programs for first offenders, offering misdemeanor probation in lieu of jail, but that is discretionary and varies by county.
• Decriminalization and Policy Debates: In the state legislature, bills have been introduced periodically to decriminalize small amounts of marijuana (for example, making under 1 ounce a civil fine rather than a misdemeanor), but none have passed as of 2025. One such decriminalization attempt via ballot initiative occurred in 2015–2016: activists gathered signatures to put a measure decriminalizing up to 1 ounce on the 2016 ballot, but they failed to secure enough valid signatures^[1]. Since then, the focus shifted to full legalization ballot measures rather than incremental decrim. As those legalization efforts faltered in 2022 and 2024, there is renewed talk among some legislators of at least reducing penalties. In the 2023 session, a bill was floated to make possession of 1 ounce or less a Class 2 misdemeanor (30 days jail max) instead of Class 1, but it died in committee. Meanwhile, a contingent of hardline legislators sought to maintain strict penalties – one even proposed re-imposing mandatory minimum jail sentences for first-time pot possession (e.g., a minimum $500 fine or 10 days jail), reflecting a punitive philosophy^[3][3]. That proposal did not pass, but it shows the spectrum of views. For now, South Dakota’s law enforcement and prosecutors continue to enforce marijuana laws thoroughly, with no official de-prioritization of minor offenses at the state level.
• Enforcement Priorities: According to statements from the South Dakota Division of Criminal Investigation (DCI) and local narcotics task forces, the top priority is large-scale trafficking, particularly methamphetamine and opioids, but marijuana trafficking (especially from legal states like Colorado) is also on the radar. Law enforcement has made significant busts involving people bringing in several pounds of high-THC marijuana or vape cartridges from Colorado or the West Coast; these are prosecuted as felonies (often distribution or possession with intent to distribute, Class 3 or 4 felonies depending on weight)^[4][6]. Interstate traffickers receive multi-year prison sentences. South Dakota’s highway patrol has conducted focused interdiction on I-90 and I-29, common corridors for drug transport, and they routinely seize cannabis during traffic stops. In one notable trend, after Minnesota legalized recreational marijuana in August 2023, South Dakota authorities reported an uptick in marijuana flow across the border. The Attorney General publicly warned Minnesota visitors not to bring cannabis into South Dakota, emphasizing that it would be prosecuted.
• “Ingestion” Law Enforcement: South Dakota’s unusual ingestion law (making it a crime to test positive for a controlled substance) has been enforced mostly in contexts where someone is arrested for another offense or on probation. For instance, if a suspect is brought in and they test positive for THC metabolites without possessing actual marijuana, they could technically be charged under SDCL 22-42-5.1 for unauthorized ingestion of a controlled substance (a Class 5 felony)^[39][39]. Historically, South Dakota did charge people this way, contributing to higher incarceration (the ingestion felony was often used to enhance penalties for repeat drug users). However, since medical cannabis’s arrival, a registered patient who tests positive is not “unauthorized” – their use is lawful. But a non-patient who hasn’t smoked for weeks could still be charged if a urine test is positive, since marijuana (THC) is a Schedule I controlled substance federally. There is a parallel misdemeanor ingestion law (SDCL 22-42-15) that covers ingesting substances for intoxication (often applied to inhalants or if they choose to charge a misdemeanor instead). In recent years, prosecutors have shown some leniency by not overusing the felony ingestion charge for marijuana, reserving it more for harder drugs like meth. The number of ingestion charges for THC has decreased, partly due to public criticism. Nonetheless, the law remains on the books – South Dakota remains the only state that explicitly makes internal possession/ingestion a felony offense^[1].
• Medical Cannabis and Law Enforcement: Generally, law enforcement has complied with the medical law’s requirements. There were initial reports in late 2021 of some patients being arrested and then having charges dropped after proving they had a card, due to communication lags with the verification system. The DOH’s online verification system helps avoid this by allowing officers to quickly check card validity 24/7^[15]. Police are not allowed to search or detain a person solely because they smell cannabis or see they have it, if the person shows a valid medical card – possession within the legal limit by a cardholder is not probable cause of a crime^[14][14]. SDCL 34-20G-14 even states that possession of a card or small amount is not grounds for search or seizure^[14]. There have been a few legal disputes where patients alleged unlawful searches; one case in 2022 involved a patient stopped for a broken tail light who informed the officer of their marijuana medicine in the vehicle, but the officer still conducted a search. The case was dismissed in court, reinforcing that cardholders have protections. Law enforcement agencies have updated training manuals to instruct officers that if a person produces a valid medical cannabis card, and the amount of product appears within the lawful limit, no arrest should be made and no seizure of the medicine should occur^[10][10]. Any violation of this could result in evidence suppression or civil liability.
• Shifting Attitudes: Public opinion in South Dakota has been mixed – medical cannabis is broadly popular (nearly 70% voted for it^[1]), while recreational remains divisive (the 2020 yes was 54%, but 2022 and 2024 were ~47-48% yes). Enforcement reflects this tension. Some judges and prosecutors have become more understanding of personal use cases, especially when the person has a medical ailment but perhaps had not yet gotten a card. First-time offenders often get suspended imposition of sentence (which can clear the record after probation). Yet, in many jurisdictions, prosecutors still seek jail time for repeat marijuana offenders or for anyone involved in distribution. South Dakota’s courts do offer drug court programs in some counties – non-violent offenders with substance abuse issues (including marijuana in combination with other drugs) may be eligible for drug court as an alternative to prison, which includes treatment and frequent testing.
• Federal Enforcement: While federal law prohibits all marijuana use, in practice, federal agencies in South Dakota (like the U.S. Attorney’s Office) generally only prosecute large trafficking cases or crimes on federal land. One area to note is tribal lands: South Dakota has several Native American reservations, which are under federal jurisdiction for major crimes. The Flandreau Santee Sioux Tribe, as mentioned in History, attempted to legalize and operate their own cannabis resort in 2015 but halted it under threat of federal intervention^[1]. As of 2025, none of the tribes in SD openly sell recreational cannabis (unlike some tribes in other states). Tribal members who possess on reservation could face tribal or federal penalties if not in the medical program. However, there’s dialogue between state officials and tribes about medical cannabis cooperation (for example, allowing tribe-run dispensaries that honor state cards).
• Hemp and CBD Enforcement: A related enforcement development is the legalization of industrial hemp and CBD in South Dakota. In 2020, the legislature finally passed a law permitting hemp cultivation and sale of hemp products (after Governor Noem vetoed an earlier hemp bill in 2019). With that, hemp-derived CBD products(containing <0.3% THC) became legal. Law enforcement had to adjust to differentiate hemp from marijuana. The state crime lab procured quantitative testing equipment to distinguish legal hemp from higher-THC cannabis. There was initial concern that smokable hemp would complicate enforcement (since it looks and smells like marijuana). Indeed, some jurisdictions treat smokable hemp as contraband because state law bans hemp intended for smoking. The presence of Delta-8 THC (a psychoactive compound made from hemp CBD) in shops also created confusion – in 2021 the state Attorney General issued a clarification that Delta-8 THC is a controlled substance under Schedule I (by DEA rule) and thus not legal simply because it’s from hemp. Many stores pulled Delta-8 products, and law enforcement has seized some mislabeled products. Essentially, police have had to become more sophisticated: when they find a cannabis-like substance, they consider if the person has a hemp license or if the product has lab results indicating <0.3% THC. Without proof, they often treat it as marijuana. The boom of CBD stores and vape shopsselling cannabinoids means consumers and police must navigate a thin line – a lawful CBD vape vs. an illegal THC vape cartridge. This has added complexity to enforcement, but the state has been actively issuing guidance to officers on field tests and the need for lab confirmation in some cases.

In conclusion, South Dakota’s enforcement of cannabis laws remains strict. The state continues to arrest and prosecute individuals for unlawful cannabis activity at a high rate, though the existence of the medical program has provided a legal avenue for many patients who might otherwise face criminal sanction. There is a gradual trend toward viewing cannabis less as a criminal issue and more as a regulatory/public health issue – evidenced by the use of drug courts, slight arrest decreases, and legislative adjustments – but by and large, South Dakota upholds prohibition for recreational use with vigor, and those who run afoul of the law face serious consequences. Anyone in possession of cannabis without a medical card should be aware that even small amounts can lead to arrest and a criminal record, given the state’s current stance.

Historical Context and Key Milestones

South Dakota’s journey with cannabis law has been marked by conservatism punctuated by sudden leaps via voter initiatives. Below is a timeline of major historical milestones in South Dakota’s cannabis legislation and policy:

• 1931 – Prohibition of Cannabis: South Dakota outlawed cannabis in 1931 as part of the early wave of state bans preceding federal prohibition^[1]. Cannabis (referred to then as “marihuana”) was classified as an illicit drug, and this status remained essentially unchanged for many decades.
• 1977 – Brief Decriminalization and Repeal: In the late 1970s, a number of states decriminalized small amounts of marijuana. In 1977, South Dakota lawmakers decriminalized cannabis, likely making possession of a small amount punishable by only a civil fine. However, this reform was extremely short-lived – the decriminalization law was “almost immediately” repealed within a year^[1]. The rapid repeal meant that by 1978, South Dakota was back to full criminalization. (Details are scant, but it’s noted as a footnote in history that SD tried decrim briefly during Jimmy Carter’s presidency when national attitudes were softening, then quickly reversed course as the war on drugs ramped up.)
• 2006 – First Medical Marijuana Ballot Initiative: South Dakota was one of the earlier red states to put medical cannabis to a direct vote. Initiated Measure 4 (2006) proposed legalizing medical marijuana for patients with serious health conditions. It was on the November 2006 ballot but failed with about 47% voting Yes, 53% No^[1]. Despite the loss, the relatively close margin (in a mid-2000s conservative electorate) signaled some support.
• 2010 – Second Medical Marijuana Initiative: Advocates tried again four years later with Initiated Measure 13 (2010). This measure was arguably more expansive and it failed by a larger margin – roughly 36% Yes to 64% No^[1]. The defeat in 2010 (a Republican wave year) was a setback. Commentators, including activist Emmett Reistroffer, attributed the drop in support partly to the concurrent presence of an indoor smoking ban referendum and a more mobilized conservative base that year^[1]. After 2010, it appeared South Dakota’s electorate was not ready for medical cannabis yet.
• 2015 – Tribal Legalization Attempt: In a notable development outside state law, the Flandreau Santee Sioux Tribe (FSST), a federally recognized tribe in eastern SD, moved to legalize cannabis on their reservation. After the 2014 DOJ memo suggesting tribes could legalize under certain conditions, FSST planned a resort with a cannabis lounge. They legalized marijuana within the reservation in mid-2015 and grew plants in a secured facility^[1]. They even harvested a crop and prepared a public “smoke lounge” event for New Year’s Eve 2015. However, facing warnings that federal or state authorities might raid (tensions were high and the state AG was opposed), the tribe preemptively destroyed its entire cannabis crop on November 7, 2015^[1]. The incident garnered national attention as the “reservation marijuana resort that wasn’t.” It highlighted the complicated jurisdictional issues – while tribes have some sovereignty, the uncertainty of federal enforcement made FSST back down. (To date, FSST has not resumed a recreational marijuana operation, though they later opened a CBD store and have shown interest in medical cannabis opportunities.)
• 2015–2016 – Decriminalization Petition (Failed): Concurrently, a group called South Dakotans Against Prohibition (SDAP) circulated a petition to decriminalize up to 1 ounce of marijuana (make it a civil infraction) and to eliminate penalties for paraphernalia and for consumption (ingestion) of cannabis^[1]. They aimed to get this on the November 2016 ballot. In late 2015, they submitted signatures but fell short of the required number of valid signatures (13,871 needed)^[1]. They withdrew the effort, which meant no cannabis question was on the 2016 ballot. The failure suggested either organizational difficulties or that public support wasn’t yet at a threshold for partial measures – setting the stage for a comprehensive approach later.
• 2017–2018 – Further Attempts and Shifting Strategy: Activists next aimed for the 2018 election. A medical cannabis initiative was proposed and signatures gathered in 2017. Over 15,000 signatures were turned in, barely over the requirement, but the Secretary of State’s validation process invalidated too many (thousands were struck for not being registered voters, etc.), leaving the petition short^[1]. Thus, no medical marijuana measure made the 2018 ballot^[1]. This was a disappointment, but advocates learned lessons in mobilizing voters. The national Marijuana Policy Project (MPP) had declined to fund SD’s 2016 attempt due to other priorities^[1], but by 2018–2019, outside groups saw an opportunity in 2020, a presidential election year likely to have high turnout and a more favorable young voter profile.
• 2019 – Hemp Legalization Veto and Passage: In 2019, the South Dakota Legislature passed a bill to legalize industrial hemp, following the 2018 U.S. Farm Bill. However, Governor Kristi Noem vetoed it, famously saying the state was not ready and coining the phrase “Hemp is the Trojan horse to marijuana.” It wasn’t until 2020 that a new hemp bill passed and Noem reluctantly signed it (given overwhelming support), taking effect in 2020. This matters in cannabis history because it set groundwork for distinguishing hemp vs. marijuana and showed the Governor’s staunch stance then against anything cannabis-related. The hemp program launch in 2020 allowed growers in 2021 and eased concerns among some conservative legislators that not all cannabis plants were equal (hemp being non-intoxicating).
• 2020 – Breakthrough: Medical and Recreational Approved by Voters: The November 3, 2020 election was historic for South Dakota:
  • Initiated Measure 26 (IM 26) – Medical Marijuana: This citizen initiative proposed a full medical cannabis program. It passed overwhelmingly with 69.9% Yes^[1] – a landslide, indicating a major shift in public opinion since 2010.
  • Constitutional Amendment A – Adult-Use Marijuana (and hemp): A separate proposal, Amendment A, sought to legalize recreational marijuana for adults 21+, require the legislature to enact medical marijuana and hemp laws (hedging in case IM 26 failed), and regulate retail sales. This also passed, with 54.2% Yes^[1]. South Dakota thus became the first state where voters approved medical and recreational cannabis in the same election.
  Amendment A was quite comprehensive – it limited possession to 1 ounce and home-grow of 3 plants for adults, and set a 15% excise tax, among other provisions. It required an implementation by April 1, 2022, for recreational sales. The twin victory was celebrated by advocates; South Dakota was poised to leap from prohibition to full legalization.
• 2021 – Legal Challenges and Medical Implementation: Almost immediately, Amendment A faced a legal challenge. In February 2021, a state circuit court judge (in a case financed by Governor Noem’s administration) ruled Amendment A unconstitutional for violating the single-subject rule and for being effectively a revision of the constitution (not just an amendment)^[1]. The case went to the South Dakota Supreme Court, which on November 24, 2021, upheld the invalidation in a 4-1 decision^[1]. Thus, recreational legalization was struck down and did not take effect. The court’s decision was based on technical grounds, not a judgment on marijuana policy itself. This left only IM 26 (medical cannabis) moving forward.Meanwhile, the legislature convened in early 2021 to consider delaying IM 26’s implementation (some wanted to push it to Jan 2022 to have more time to set rules). The Senate and House disagreed on the delay, and ultimately, IM 26 took effect on schedule on July 1, 2021^[1]. The Department of Health scrambled to draft rules and set up the infrastructure. By late 2021, the first medical cannabis ID cards were issued (patients could apply starting in November 2021) and the first dispensaries opened in summer 2022. The first legal sale of medical cannabis in SD occurred in July 2022 on the Pine Ridge Indian Reservation (the Oglala Sioux Tribe opened a dispensary for tribal members earlier), and the first state-licensed dispensary sale happened in Fall 2022 in Brookings. The rollout was slower than some expected, but by 2022’s end, dozens of dispensaries were operating.
• 2022 – Second Recreational Vote (Failed) & Program Growth: As noted, 2022 saw the failure of Initiated Measure 27 to legalize recreational use^[1]. This was a pivotal moment, indicating that the 2020 support might have been an anomaly of a higher-turnout election or that voters were swayed by the governor’s messaging after seeing Colorado and other states. Many South Dakotans who voted “Yes” in 2020 perhaps sat out 2022 or changed their mind after hearing concerns. The result reaffirmed that for now, cannabis beyond medical use was not approved.On the medical side, 2022 was the year the program became fully operational. Patients, caregivers, and businesses navigated the new system. Some teething issues were resolved – for example, South Dakota clarified that paraphernalia is legal for medical use (patients can possess pipes, vaporizers, etc., needed for consuming cannabis – an important clarification since previously possession of paraphernalia was illegal)^[5]. The DOH also had to address whether concentrates count toward the 3 oz limit by promulgating rules (they do, via equivalency weights). By year’s end, over 1,500 patients were enrolled, a number that grew significantly into 2023.
• 2023–2024 – Legislative Adjustments and Status Quo: The state legislature, now with two years of medical program data, made the series of modifications detailed in the Recent Changes section (adding conditions, restricting doctors, etc.). These can be seen as part of the historical narrative: South Dakota’s government, initially opposed, grudgingly accepted medical cannabis and moved to assert more control over it. Governor Noem, for instance, in 2023 said that while she still dislikes marijuana, she is committed to “implementing the will of the people” on medical marijuana – albeit in a way that “ensures public safety.” This philosophy drove the 2023 laws requiring PDMP reporting and banning pregnant patients from using cannabis.By 2024, the medical program had over 10,000 patients, more than 100 licensed dispensaries, and several cultivation and manufacturing facilities serving the market. No major legal challenges arose against the medical law (unlike some other states, South Dakota’s government did not try to overturn IM 26 in court). Instead, they amended it through normal legislative means. On the recreational front, the defeat of the 2024 measure likely puts the issue on pause until at least 2026. Advocates have expressed determination to try again, citing that neighboring states like Montana have legalized and Minnesota’s legal market is developing, which they fear will disadvantage South Dakota economically and in law enforcement resources.
• Notable Legal Citations: Key legal documents in this historical journey include:
  • South Dakota Codified Laws (SDCL) 22-42 – establishing the criminal prohibitions on marijuana since early days, including the classification of offenses^[4].
  • SDCL 34-20G – the chapter created by IM 26 (2020) for medical cannabis, containing the modern legal framework^[14].
  • 2021 South Dakota Supreme Court decision Thom v. Barnett* (upholding the voiding of Amendment A) – which serves as case law that a broad marijuana amendment was unconstitutional in form.
  • Initiated Measure 26 (2020) – the ballot text that became SDCL 34-20G (useful for legislative intent).
  • Constitutional Amendment A (2020) – the text as passed by voters (and later nullified), which shows what the public approved for recreational use.
  • Senate Bill 1 (2023) and others – demonstrating legislative response to the initiated law.
  Each of these can be referenced for those researching the exact language and legal reasoning:
  • SDCL 22-42-6 codifies the possession penalties (Class 1 misdemeanor for ≤2 oz, etc.)^[4].
  • SDCL 34-20G-1 defines terms like allowable amount and lists conditions^[11][11].
  • SDCL 34-20G-2 provides patient protections from arrest^[10].
  • SDCL 34-20G-58 and 59 cover local regulations and prohibitions^[25][24].
  • SDCL 34-20G-72 authorizes DOH rulemaking and makes violations of rules a misdemeanor^[14][14].
  • South Dakota Constitution Article XX (Proposed Amendment A) – had it stood, would have created new constitutional rights regarding cannabis (struck down in 2021).
• Historical Significance: In a broader sense, South Dakota’s cannabis history is significant because it was the first state where voters approved recreational marijuana and then had it judicially taken away. It highlights the interaction between direct democracy and the courts. It’s also a state where the cultural divide over cannabis is sharp – with libertarian-leaning voters supporting personal freedom on one hand, and social conservatives worried about health and crime on the other. The result has been a cautious approach: medical cannabis is accessible but tightly overseen; recreational cannabis remains illegal despite notable public support in certain years.
• Looking Ahead: Historically, public opinion and law can shift quickly. If one looks at 2006’s 47% support for medical growing to 70% in 2020, attitudes changed. Recreational got 54% in 2020, then ~47% in 2022/2024 – indicating outcomes can depend on turnout and campaigning. It’s conceivable that in a high-turnout election (say 2028 presidential), legalization could pass again. For now, the historical trend suggests South Dakota eventually will legalize recreational use, but only after several fits and starts. Until then, its history is one of incremental change, with the people often leading (via ballot initiatives) and the government reacting (through implementation and tweaks).

Sources:

South Dakota Codified Laws, Title 22, Chapter 42 (controlled substances and marijuana offenses)^[4][6][7]; Title 34, Chapter 20G (medical cannabis provisions)^[11][11]; South Dakota Legislature Session Laws 2022–2024 (SB 1, SB 134, SB 42, HB 1053, HB 1154, etc.)^[12][12][19]; South Dakota Department of Health, Medical Cannabis Program – Official FAQs and Updates^[13][12][27]; South Dakota Secretary of State – 2020 Ballot Question Texts and Election Results^[1]; South Dakota Supreme Court ruling 2021 (re Amendment A)^[1]; South Dakota Searchlight news report (Apr. 15, 2025) on legalization efforts and legislative actions^[3][3]; Cannabis in South Dakota (Wikipedia historical summary)^[1][1][1]; Marijuana Moment news analysis of arrest statistics (Sep. 22, 2020)^[32]; NORML South Dakota state law summaries^[5][5]; and South Dakota Administrative Rules (ARSD 44:90) via DOH guidance documents^[13][13].