In 2026, the answer is a strict and absolute NO. The Federal Aviation Administration (FAA) maintains a zero-tolerance policy regarding the use of any marijuana-derived products, including Delta-8 THC, CBD oils with trace THC, or "legal" hemp products. Although Delta-8 may be legal under certain state or federal farm laws, it is a psychoactive substance that can impair judgment and motor skills. More importantly, Delta-8 will cause a positive result on a DOT (Department of Transportation) drug test, which does not distinguish between different forms of THC. A positive test or a "refusal to test" results in the immediate and permanent revocation of a pilot's medical certificate and pilot license, effectively ending their career. The FAA's 2026 guidance is "No Use Ever," warning pilots that even "THC-free" labels on supplements can be inaccurate. Pilots are subject to random testing, and even an off-duty ingestion of a Delta-8 gummy weeks prior can lead to a career-ending failure during a surprise screening.