Deviations

  1. A departure from a current clearance, such as an off course maneuver to avoid weather or turbulence.
  2. Where specifically authorized in the CFRs and requested by the pilot, ATC may permit pilots to deviate from certain regulations.

Source: FAA Pilot/Controller Glossary (definition from the 2023 edition; current: Change 1 of 7 August 2025).

Related terms

Glossary last updated 2026-10-28.

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