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The Pilots Desk
TH-CAATAlcohol and drugs

Guidance on Alcohol and Drugs for Pilots

Read the official rule

Pilots must adhere to strict regulations regarding alcohol and drug consumption. They cannot consume alcohol within eight hours before flying or be under the influence of psychoactive substances. If they violate these guidelines, their medical certificate can be temporarily invalidated until they meet the health and safety standards again.

Key points

  • No alcohol consumption within eight hours of duty.
  • Pilots cannot be under the influence of any psychoactive substances while operating aircraft.
  • Violations can lead to temporary invalidation of their medical certificate.

*Plain-English summary of Civil Aviation Authority of Thailand guidance — always consult the official source (linked above) for current, authoritative requirements.*

This is an original plain-English explanation for training and reference, not legal advice and not for navigation. Always rely on the current official rule linked above. Last reviewed June 16, 2026.