StacksVerified U.S. regulatory reference

14 CFR §121.377

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Within the United States, each certificate holder (or person performing maintenance or preventive maintenance functions for it) shall relieve each person performing maintenance or preventive maintenance from duty for a period of at least 24 consecutive hours during any seven consecutive days, or the equivalent thereof within any one calendar month.