14 CFR 99.17
§ 99.17 Deviation from flight plans and ATC clearances and instructions.
United States · 14 CFR — Aeronautics and Space · Status: effective
Cite this
- Citation
- 14 CFR 99.17, § 99.17 Deviation from flight plans and ATC clearances and instructions, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/56311
- Permanent ID
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Full text
(a) No pilot may deviate from the provisions of an ATC clearance or ATC instruction except in accordance with § 91.123 of this chapter.
(b) No pilot may deviate from the filed IFR flight plan when operating an aircraft in uncontrolled airspace unless that pilot notifies an appropriate aeronautical facility before deviating.
(c) No pilot may deviate from the filed DVFR flight plan unless that pilot notifies an appropriate aeronautical facility before deviating.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.