Therapeutic Use Exemption (TUE) for Cannabis & Strict Liability

The TUE Framework Medical TUE pathway

A Therapeutic Use Exemption (TUE) is the formal mechanism under the WADA Code for an athlete to use a prohibited substance for a documented medical purpose without committing an anti-doping rule violation. TUEs are governed by the WADA International Standard for TUE (ISTUE); the 2026 ISTUE, like prior cycles, sets out the criteria in Article 4.1:

1. The athlete would experience significant impairment to health without using the prohibited substance.
2. The therapeutic use of the substance would not produce additional enhancement of performance beyond what might be anticipated by a return to the athlete's normal state of health.
3. No reasonable permitted therapeutic alternative to the use of the substance exists.
4. The necessity for use is not a consequence, in whole or in part, of the prior use (without a TUE) of a substance or method that was prohibited at the time of use.

For cannabis, all four criteria are difficult to satisfy simultaneously. Multiple permitted alternatives exist for nearly every condition cannabis is prescribed for — pain, anxiety, insomnia, nausea — and the WADA framework treats CBD as already permitted, narrowing the universe of conditions where THC specifically is required. TUEs for cannabis are theoretically possible but rarely granted. There is no established TUE pathway for recreational use; the framework contemplates documented medical use only.

Strict Liability: Article 2.1.1

The defining principle of WADA-Code anti-doping is strict liability, codified in Article 2.1.1: "It is each Athlete's personal duty to ensure that no Prohibited Substance enters his or her body. Athletes are responsible for any Prohibited Substance or its Metabolites or Markers found to be present in their Samples. Accordingly, it is not necessary that intent, Fault, Negligence or knowing Use on the Athlete's part be demonstrated in order to establish an anti-doping rule violation under Article 2.1."

Strict liability has practical consequences that follow directly from the language:

• An athlete who consumes a contaminated CBD product is responsible for the resulting positive test, even if 69% of products were mislabeled (Bonn-Miller et al., JAMA, 2017) and the contamination was undetectable from the label. See CBD THC Contamination Risk.
• An athlete who accepts a tampered drink or food is responsible for any prohibited substance found in the resulting sample.
• An athlete whose training partner or roommate uses cannabis in shared space, producing potential second-hand exposure, is responsible for any test result above the WADA threshold — though the threshold of 150 ng/mL with a 180 ng/mL Decision Limit is set above what realistic second-hand exposure produces.
• An athlete who used cannabis legally in a recreational state out-of-competition is responsible for any in-competition positive resulting from THC-COOH persistence. See In- vs Out-of-Competition.

Mitigating factors — certified-supplement use, demonstrable contamination, no significant fault — can reduce penalties under WADA's Substance of Abuse framework (Article 10.2.4.1, applicable to cannabis since 2021), which can shorten ineligibility to as little as one month with rehabilitation and a finding that the use was non-performance-related. But the violation itself stands.

The Brittney Griner Case: Medical Certification Did Not Travel

The cleanest illustration that medical certification is jurisdiction-bound is the Brittney Griner case. Griner held a valid Arizona medical-cannabis recommendation in the U.S. On February 17, 2022, she was detained at Sheremetyevo airport in Moscow with cannabis vape cartridges in her luggage. On August 4, 2022, she was sentenced by a Russian court to nine years in a Russian penal colony. She was released on December 8, 2022 in a prisoner swap for Viktor Bout. The case is the strongest available reminder that:

• State medical certification has no extraterritorial effect. Arizona's authorization does not legally bind Russian, Chinese, Japanese, or any other foreign jurisdiction.
• WADA TUEs do not protect athletes from criminal law in the country of competition. A WADA TUE is an anti-doping mechanism, not a shield against possession charges.
• Hemp-derived CBD products are illegal in many countries, including those with strict THC criminalization frameworks. The legal status in the country of departure is irrelevant if the destination prohibits the product.

Griner's case reframed every WNBA-overseas conversation about cannabis-related travel risk and is now standard in pre-departure briefings for athletes traveling to high-risk jurisdictions.

USADA Athlete Express and GlobalDRO

The two essential lookup resources for athletes preparing to compete under USADA or any WADA-Code signatory:

• USADA Athlete Express — phone 1-866-601-2632, email drugreference@USADA.org. Handles substance-status questions, brand-name-to-prohibited-list mapping, and TUE process inquiries.
• GlobalDRO.com — the WADA-supported global database for medication checks. Athletes enter a brand name, dosage, and country of purchase; the database returns the in-competition and out-of-competition status under the current WADA Prohibited List.
• WADA Anti-Doping Knowledge Hub at wada-ama.org — hosts the 2026 Prohibited List, the ADEL e-learning platform, and the Athlete and ASP (Athlete Support Personnel) Guide PDFs.
• NSF Certified for Sport database at nsfsport.com (and the NSF mobile app) — for verifying CBD and dietary-supplement certification. See NSF Certified for Sport.
• Informed Sport database at sport.wetestyoutrust.com — for batch-level verification under LGC Assure. See Informed Sport & BSCG.

Practical Implications

Athletes who understand the strict-liability framework develop a routine that protects them from most realistic risks:

1. Verify every supplement against NSF or Informed Sport before ingestion.
2. Do not accept open drinks or food in competition environments from people you do not know.
3. Avoid hemp-derived "alternative cannabinoids" entirely if you are tested.
4. For documented medical conditions where cannabis is being considered, work with sports-medicine physicians familiar with the TUE framework before the substance is in the system — not after a positive test.
5. For international travel, treat the country of competition's law as binding regardless of any state, federal, or WADA-level authorization. The Griner case is the cautionary precedent.

For the broader testing framework these protocols sit within, see Drug Testing Overview, Thresholds & Windows, and Washout Protocols.