TSA Marijuana Policy: What Travelers Need to Know About Flying With Cannabis

Executive Summary

The Transportation Security Administration updated its marijuana policy in May 2026, clarifying screening procedures at U.S. airports amid growing state-level legalization. The policy update does not legalize flying with cannabis—marijuana remains a Schedule I controlled substance under federal law—but refines how TSA officers handle discoveries during security screening. TSA's primary mission is detecting security threats, not enforcing drug laws, yet officers are required to refer suspected violations of federal law to law enforcement. The update comes as 38 states have legalized medical cannabis and 24 have legalized adult-use programs, creating confusion for millions of travelers navigating conflicting state and federal regulations. Understanding TSA's actual authority, the role of local airport police, and the legal risks of interstate cannabis transport is essential for patients, recreational users, and industry stakeholders.

Why This Matters

More than 2.9 million passengers pass through TSA checkpoints daily, and an estimated 15-20% reside in states with legal cannabis programs. The policy update affects medical marijuana patients who rely on cannabis for chronic pain, epilepsy, PTSD, and other conditions, many of whom travel regularly for work or family obligations. It impacts the 428,000 Americans employed in the legal cannabis industry, including executives, cultivators, and dispensary workers who frequently fly for business. Recreational users in the 24 adult-use states face uncertainty about whether products legal at home remain legal in destination states.

The financial stakes are substantial. The U.S. cannabis industry generated $30 billion in sales in 2025, with multi-state operators like Curaleaf, Green Thumb Industries, and Trulieve operating across dozens of jurisdictions. Interstate commerce restrictions force these companies to maintain redundant cultivation and processing facilities in each state, inflating costs by an estimated 40-60% compared to industries with normal supply chains. TSA policy directly impacts investor confidence, patient access, and the operational calculus of every licensed operator.

Law enforcement priorities also hang in the balance. Airport police in states like California, Colorado, and Massachusetts have adopted de facto non-enforcement policies for small amounts of cannabis, while airports in Texas, Idaho, and other prohibition states maintain strict enforcement. The patchwork creates legal risk for travelers and operational confusion for TSA officers working across jurisdictions.

Background and History: TSA and Cannabis Since 2001

TSA's relationship with marijuana policy has evolved through two decades of state-level legalization, federal inaction, and administrative clarifications.

2001-2012: Post-9/11 Security Focus

The Transportation Security Administration was created by the Aviation and Transportation Security Act in November 2001, following the September 11 attacks. Its statutory mission under 49 U.S.C. § 114 is protecting transportation systems and ensuring freedom of movement for people and commerce. From inception, TSA's screening procedures prioritized explosives, weapons, and other security threats. Drug interdiction was explicitly the responsibility of the Drug Enforcement Administration and local law enforcement, not TSA.

During this period, medical marijuana programs existed in California (since 1996), Alaska, Oregon, Washington, Maine, Hawaii, Colorado, Nevada, and Montana. TSA policy was straightforward: marijuana remained illegal under the Controlled Substances Act (21 U.S.C. § 812), and any discovery would be referred to law enforcement. Few public incidents occurred, as medical programs were small and patients generally avoided air travel with cannabis.

2012-2014: Colorado and Washington Legalization

Colorado and Washington voters approved adult-use legalization in November 2012, with retail sales beginning in January 2014 (Colorado) and July 2014 (Washington). Denver International Airport became the first major hub where significant numbers of passengers possessed state-legal cannabis. In May 2014, Denver airport officials installed "amnesty boxes" allowing passengers to dispose of marijuana before security screening.

TSA issued its first major clarification in January 2014, stating that officers do not search for marijuana but will refer any discovery to local law enforcement. The Denver Police Department adopted a policy of issuing civil citations (not arrests) for possession of less than one ounce, effectively decriminalizing small amounts at the airport. This became the template for other legal states.

2015-2018: Medical Cannabis Expansion

By 2018, 33 states had legalized medical marijuana. TSA faced growing questions about CBD products, hemp-derived oils, and medical cannabis cards. The agency maintained that all cannabis products remained federally illegal, but enforcement varied wildly by airport. Los Angeles International Airport announced in September 2018 that airport police would allow passengers to travel with up to 28.5 grams of marijuana and 8 grams of concentrated cannabis, consistent with California state law.

The 2018 Farm Bill, signed in December 2018, removed hemp (cannabis with less than 0.3% THC) from the Controlled Substances Act. This created a new category: hemp-derived CBD products were federally legal, while marijuana-derived CBD remained Schedule I. TSA updated its website in May 2019 to reflect that hemp-derived CBD products were permitted in carry-on and checked bags.

2019-2021: Federal Hemp Legalization and State Divergence

Following the Farm Bill, TSA clarified in May 2019 that "marijuana and certain cannabis-infused products, including some cannabidiol (CBD) oil, remain illegal under federal law except for products that contain no more than 0.3% THC on a dry weight basis or that are approved by FDA." This created the current framework: hemp-derived CBD is allowed, marijuana is not, but TSA's focus remains security threats.

The COVID-19 pandemic reduced air travel by 60% in 2020, temporarily reducing cannabis-related incidents. As travel rebounded in 2021, TSA reported that officers discovered cannabis in approximately 0.08% of screenings—roughly 2,300 incidents daily across all U.S. airports. Most resulted in confiscation or local citations, not federal prosecution.

2022-2024: State Legalization Acceleration

Adult-use legalization accelerated: New Jersey (2021), New York (2021), Rhode Island (2022), Maryland (2023), Ohio (2023), and others. By 2024, 24 states representing 54% of the U.S. population had legal adult-use programs. Major airports in legal states—including John F. Kennedy International, Newark Liberty, Chicago O'Hare, and Seattle-Tacoma—adopted permissive local policies.

TSA did not update its official policy during this period, but regional variation increased. A passenger flying from New York to California (both legal states) faced minimal risk, while the same passenger connecting through Dallas-Fort Worth (Texas, a prohibition state) faced potential arrest. Industry advocates, including the National Organization for the Reform of Marijuana Laws and the U.S. Travel Association, called for federal clarity.

2025-2026: Rescheduling Debate and Policy Update

In August 2023, the Department of Health and Human Services recommended rescheduling marijuana from Schedule I to Schedule III under the Controlled Substances Act. The DEA initiated a rulemaking process, with a Notice of Proposed Rulemaking published in May 2024. As of May 2026, the rescheduling remains pending, with administrative law judge hearings scheduled through summer 2026.

Against this backdrop, TSA updated its marijuana policy in May 2026. The update did not change the fundamental legal framework—marijuana remains federally illegal—but clarified screening procedures, officer discretion, and the distinction between hemp-derived and marijuana-derived products. The update emphasized that TSA's mission is security, not drug enforcement, while reiterating that officers must refer suspected federal law violations to law enforcement.

Key Players

Transportation Security Administration

TSA, a component of the Department of Homeland Security, operates security screening at 440 U.S. airports. The agency employs approximately 50,000 Transportation Security Officers who conduct passenger and baggage screening. TSA Administrator David Pekoske, appointed in 2017 and retained through multiple administrations, has emphasized a risk-based, intelligence-driven approach to security. TSA's official policy states that officers are not searching for marijuana, but if discovered during screening for security threats, they will refer the matter to law enforcement. The May 2026 update reinforced this framework while providing additional guidance on hemp-derived products and medical cannabis documentation.

Drug Enforcement Administration

The DEA enforces the Controlled Substances Act, under which marijuana remains a Schedule I substance as of May 2026. The agency has authority over interstate drug trafficking but does not station agents at airport security checkpoints. DEA involvement in airport cannabis cases is rare and typically limited to large-scale trafficking operations. The pending rescheduling to Schedule III would not legalize marijuana but would reduce criminal penalties and remove some regulatory barriers. DEA Administrator Anne Milgram has stated that rescheduling decisions are based on scientific and medical evidence, not state-level legalization trends.

Airport Police Departments

Local law enforcement at airports determines actual enforcement outcomes. The Los Angeles Airport Police, Denver Police Department, Seattle-Tacoma International Airport Police, and Port Authority Police (New York/New Jersey) have adopted policies allowing possession consistent with state law. In contrast, Dallas-Fort Worth Airport Police, Hartsfield-Jackson Atlanta Airport Police, and other departments in prohibition states enforce state marijuana laws, leading to arrests and criminal charges. This jurisdictional patchwork means enforcement depends entirely on where a passenger is screened, not where they are traveling to or from.

Multi-State Operators and Industry Groups

Cannabis companies including Curaleaf, Green Thumb Industries, Trulieve, Cresco Labs, and Verano Holdings operate in multiple states but cannot transport products across state lines. Executives and employees fly frequently for business, often carrying CBD products or documentation related to state-licensed operations. The U.S. Cannabis Council and National Cannabis Industry Association have advocated for federal safe harbor provisions allowing interstate travel with state-legal products. These groups view TSA policy as a bellwether for broader federal reform.

Patient Advocacy Organizations

Americans for Safe Access, the Epilepsy Foundation, and Veterans Cannabis Project represent medical marijuana patients who rely on specific strains, ratios, and formulations unavailable in all states. These organizations have documented cases of patients arrested or having medicine confiscated while traveling for medical treatment, family emergencies, or military service. They advocate for federal recognition of state medical cannabis cards and explicit TSA guidance protecting patient travel.

Legal and Regulatory Framework

The legal framework governing cannabis and air travel rests on the Controlled Substances Act, TSA's statutory authority, and state law variations.

Under 21 U.S.C. § 812, marijuana is classified as a Schedule I controlled substance, defined as having high potential for abuse, no currently accepted medical use, and lack of accepted safety for use under medical supervision. Possession, manufacture, and distribution are federal crimes under 21 U.S.C. § 841, with penalties ranging from one year to life imprisonment depending on quantity. Interstate transport is prosecuted as drug trafficking, a more serious offense than simple possession.

The 2018 Farm Bill (Agriculture Improvement Act of 2018) amended the Controlled Substances Act to exclude hemp, defined as cannabis containing no more than 0.3% delta-9 THC on a dry weight basis. This created a legal distinction: hemp-derived CBD products are federally legal and permitted in air travel, while marijuana-derived products remain Schedule I. The FDA regulates hemp-derived products under the Federal Food, Drug, and Cosmetic Act but has not established comprehensive regulations as of May 2026.

TSA's authority derives from 49 U.S.C. § 114, which tasks the agency with preventing terrorism and ensuring transportation security. TSA regulations at 49 C.F.R. § 1540 prohibit passengers from carrying explosives, firearms, and other prohibited items. Marijuana is not listed as a prohibited item for security purposes, reflecting TSA's position that cannabis does not pose a security threat. However, 49 C.F.R. § 1540.111 requires TSA to refer suspected violations of federal law to law enforcement.

State laws create the enforcement patchwork. In California, Proposition 64 (2016) legalized possession of up to 28.5 grams for adults 21 and over. California Health and Safety Code § 11362.1 permits possession but prohibits transport out of state. New York's Marijuana Regulation and Taxation Act allows possession of up to three ounces. Colorado Amendment 64 permits one ounce. These state laws bind local airport police but do not override federal law or TSA authority.

The pending DEA rescheduling to Schedule III would maintain federal prohibition but reduce criminal penalties under 21 U.S.C. § 841. Schedule III substances include anabolic steroids and ketamine, which remain controlled but are recognized as having accepted medical uses. Rescheduling would not legalize marijuana or authorize interstate commerce, but it would eliminate some mandatory minimum sentences and reduce the severity of federal charges.

State-by-State Breakdown: Airport Policies and Enforcement

Enforcement of marijuana laws at airports varies dramatically by state, creating a complex landscape for travelers.

California

California legalized adult-use cannabis in 2016, with sales beginning in January 2018. Los Angeles International Airport, San Francisco International Airport, San Diego International Airport, and other major hubs allow possession consistent with state law (up to 28.5 grams of flower, 8 grams of concentrate). Airport police do not cite passengers for state-legal amounts. However, TSA still refers discoveries to local police, who typically confiscate products without arrest. Travelers departing California to prohibition states face legal risk upon arrival.

Colorado

Colorado pioneered adult-use legalization in 2012. Denver International Airport allows possession of up to one ounce but prohibits consumption on airport property. The airport installed "amnesty boxes" in 2014 for voluntary disposal. Denver Police issue civil citations (not criminal charges) for possession violations. Colorado Springs Airport and other regional airports follow similar policies. Colorado law prohibits transporting marijuana out of state, with violations prosecuted as felonies.

New York

New York legalized adult-use cannabis in 2021, with retail sales beginning in December 2022. John F. Kennedy International Airport, LaGuardia Airport, and Newark Liberty International Airport (New Jersey, also legal) allow possession of up to three ounces under state law. Port Authority Police have adopted non-enforcement policies for state-legal amounts. New York's Marijuana Regulation and Taxation Act prohibits interstate transport, but enforcement at airports is minimal.

Illinois

Illinois legalized adult-use cannabis in 2020. Chicago O'Hare International Airport and Chicago Midway International Airport allow possession of up to 30 grams (approximately one ounce) for Illinois residents, 15 grams for non-residents. Chicago Police Department policy is to confiscate cannabis without arrest for amounts within state limits. Illinois law prohibits removing cannabis from the state, with violations prosecuted as felonies.

Massachusetts

Massachusetts legalized adult-use cannabis in 2016. Boston Logan International Airport allows possession of up to one ounce under state law. Massachusetts State Police, which patrol the airport, do not arrest passengers for state-legal amounts but may confiscate products. Massachusetts law prohibits interstate transport, and travelers to prohibition states face legal risk.

Florida

Florida has a medical marijuana program but has not legalized adult-use cannabis. Miami International Airport, Orlando International Airport, and Tampa International Airport enforce Florida law, which allows only registered medical marijuana patients to possess cannabis. Possession without a valid Florida medical card is a criminal offense. Florida Statutes § 893.13 classifies possession of up to 20 grams as a first-degree misdemeanor (up to one year in jail), with larger amounts prosecuted as felonies.

Texas

Texas has a limited medical cannabis program (low-THC CBD only) and prohibits recreational use. Dallas-Fort Worth International Airport, George Bush Intercontinental Airport (Houston), and Austin-Bergstrom International Airport enforce Texas law strictly. Possession of any amount of marijuana is a criminal offense under Texas Health and Safety Code § 481.121, with penalties ranging from Class B misdemeanor (up to 180 days in jail) to felony charges for larger amounts. Airport police arrest passengers found with cannabis, regardless of origin state.

Georgia

Georgia has a limited medical cannabis program but prohibits adult-use marijuana. Hartsfield-Jackson Atlanta International Airport, the world's busiest airport by passenger traffic, enforces Georgia law. Possession of less than one ounce is a misdemeanor under O.C.G.A. § 16-13-2, punishable by up to one year in jail and a $1,000 fine. Airport police arrest passengers found with cannabis, and Fulton County prosecutors pursue charges.

Nevada

Nevada legalized adult-use cannabis in 2017. McCarran International Airport (Las Vegas) and Reno-Tahoe International Airport allow possession of up to one ounce under state law. Clark County regulations permit possession but prohibit consumption at the airport. Las Vegas Metropolitan Police typically confiscate cannabis without arrest for state-legal amounts. Nevada law prohibits interstate transport.

Washington

Washington legalized adult-use cannabis in 2012. Seattle-Tacoma International Airport allows possession of up to one ounce under state law. Port of Seattle Police do not arrest passengers for state-legal amounts but may confiscate products. Washington law prohibits removing cannabis from the state, with violations prosecuted as felonies.

Ohio

Ohio legalized adult-use cannabis in November 2023, with sales beginning in August 2024. Cleveland Hopkins International Airport, John Glenn Columbus International Airport, and Cincinnati/Northern Kentucky International Airport (Kentucky side remains illegal) are transitioning policies. Ohio law allows possession of up to 2.5 ounces. Enforcement varies by airport police jurisdiction, with some departments adopting non-arrest policies while others maintain strict enforcement pending statewide policy clarification.

Market and Business Implications

TSA marijuana policy directly impacts multi-state operator strategy, investor confidence, and the $30 billion U.S. cannabis industry.

Interstate commerce restrictions force cannabis companies to operate as state-siloed businesses. A company like Curaleaf, with operations in 18 states, must maintain separate cultivation facilities, processing labs, and distribution networks in each jurisdiction. This redundancy inflates capital expenditures by an estimated $200-400 million compared to a hypothetical scenario with interstate commerce. Executives fly frequently between facilities, often carrying CBD products, lab reports, and business documents related to state-licensed operations.

The May 2026 TSA update provides marginal clarity but does not resolve the fundamental interstate commerce prohibition. Multi-state operators continue to face operational inefficiencies, with wholesale cannabis prices varying from $800-1,200 per pound in mature markets like Oregon and Colorado to $2,500-3,500 per pound in limited-license states like Illinois and New York. Interstate transport would normalize pricing and improve supply chain efficiency, but federal prohibition under 21 U.S.C. § 841 makes this impossible.

Investor sentiment is influenced by federal policy signals. The pending DEA rescheduling to Schedule III would eliminate Internal Revenue Code § 280E restrictions, which currently prohibit cannabis businesses from deducting ordinary business expenses. This would improve EBITDA margins by an estimated 15-25% for profitable operators. TSA policy updates, while less significant than rescheduling, signal federal regulatory evolution and reduce perceived legal risk for investors.

Hemp-derived CBD products, legal under the 2018 Farm Bill, represent a parallel market estimated at $5-7 billion annually. Companies like Charlotte's Web, cbdMD, and Lazarus Naturals sell products online and in retail stores nationwide. These products are explicitly permitted in air travel under TSA's May 2019 guidance, creating a competitive advantage over marijuana-derived CBD products. However, the FDA has not established comprehensive regulations for hemp-derived CBD, creating quality control and labeling inconsistencies.

Medical marijuana patients face unique challenges. A patient in Florida with a valid medical card cannot legally travel to New York with their medicine, even though both states have medical programs. Patients must either go without medication, risk federal prosecution, or purchase products in the destination state (if they qualify for that state's program). This fragmentation undermines patient access and creates hardship for those traveling for medical treatment, family emergencies, or work.

What Experts Say

Legal scholars, industry executives, and patient advocates have weighed in on TSA marijuana policy and its implications.

According to Robert Mikos, a law professor at Vanderbilt University and author of "Marijuana Law, Policy, and Authority," TSA's updated policy reflects the agency's limited statutory mission. Mikos has explained in published research that TSA is not a drug enforcement agency and has no authority to arrest passengers or seize contraband beyond security threats. The referral to local law enforcement is a legal requirement under 49 C.F.R. § 1540.111, but actual enforcement depends entirely on local police priorities.

Paul Armentano, deputy director of the National Organization for the Reform of Marijuana Laws, has stated in public comments that the patchwork of state and federal laws creates untenable legal risk for patients and recreational users. Armentano has advocated for federal legislation creating a safe harbor for interstate travel with state-legal cannabis, similar to protections for firearms under the Firearm Owners Protection Act.

Boris Jordan, executive chairman of Curaleaf Holdings, has described in investor presentations how interstate commerce restrictions inflate operational costs and limit market efficiency. Jordan has noted that the cannabis industry operates under constraints no other legal industry faces, with TSA policy serving as a microcosm of broader federal-state conflicts.

Steph Sherer, founder and president of Americans for Safe Access, has documented cases of medical marijuana patients arrested or having medicine confiscated at airports. Sherer has called for federal recognition of state medical cannabis cards and explicit TSA guidance protecting patient travel, similar to protections for prescription medications under the Controlled Substances Act.

Former TSA Administrator John Pistole, who led the agency from 2010 to 2014, has explained in interviews that TSA's risk-based approach prioritizes threats to aviation security. Pistole has noted that marijuana does not pose a security threat and that TSA resources are better spent on explosives detection and passenger screening for weapons.

What's Next: Key Dates and Decision Points

Several federal and state developments will shape TSA marijuana policy and enforcement in the coming months and years.

The DEA rescheduling process remains the most significant pending decision. Administrative law judge hearings are scheduled through summer 2026, with a final rule expected in late 2026 or early 2027. If marijuana is rescheduled to Schedule III, it would remain federally illegal but with reduced criminal penalties. TSA policy would likely remain unchanged, as the agency's focus is security threats, not drug classification. However, rescheduling could influence local airport police enforcement priorities.

Congressional legislation offers another path. The Cannabis Administration and Opportunity Act, introduced in the Senate in 2023, would deschedule marijuana entirely and establish a federal regulatory framework. The bill has not advanced to a floor vote as of May 2026, but similar legislation could be reintroduced in the next Congress. Descheduling would eliminate federal criminal liability and potentially allow interstate commerce, fundamentally changing TSA's role.

State-level legalization continues to expand. Ballot initiatives for adult-use legalization are expected in Florida, Pennsylvania, and other states in 2026 and 2027. Each new legal state increases the percentage of travelers possessing state-legal cannabis and adds pressure for federal reform. Major airports in newly legal states will adopt policies similar to California, Colorado, and New York, further fragmenting enforcement.

TSA may issue additional guidance on hemp-derived products, particularly as the FDA develops regulations for CBD. The agency's May 2019 guidance permits hemp-derived CBD products containing less than 0.3% THC, but testing and labeling standards remain inconsistent. Future TSA updates could address delta-8 THC, delta-10 THC, and other hemp-derived cannabinoids that exist in legal gray areas.

Litigation could also shape policy. Patients and advocacy groups have explored legal challenges to federal marijuana prohibition under the Controlled Substances Act, arguing that the classification as Schedule I is arbitrary and violates due process. While no case has succeeded in federal court as of May 2026, a favorable ruling could force DEA rescheduling or congressional action.

Further Reading and Primary Sources

• TSA official marijuana policy: https://www.tsa.gov/travel/security-screening/whatcanibring/items/medical-marijuana
• Controlled Substances Act, 21 U.S.C. § 812: https://www.law.cornell.edu/uscode/text/21/812
• 2018 Farm Bill (Agriculture Improvement Act): https://www.congress.gov/bill/115th-congress/house-bill/2
• DEA marijuana rescheduling docket: https://www.regulations.gov/docket/DEA-2023-0059
• Los Angeles International Airport cannabis policy: https://www.flylax.com/travelsafely
• Denver International Airport cannabis policy: https://www.flydenver.com/security
• National Organization for the Reform of Marijuana Laws: https://norml.org
• Americans for Safe Access: https://www.safeaccessnow.org
• U.S. Cannabis Council: https://www.uscannabiscouncil.org
• FDA hemp and CBD regulation: https://www.fda.gov/news-events/public-health-focus/fda-regulation-cannabis-and-cannabis-derived-products-including-cannabidiol-cbd