StacksVerified U.S. regulatory reference

14 CFR §450.159

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)An operator must implement pre-flight procedures that—
    1. (1)Verify that each flight commit criterion is satisfied before flight is initiated; and
    2. (2)Ensure the operator can return the vehicle to a safe state after a countdown abort or delay.
  2. (b)An operator must ensure the currency of the pre-flight procedures, and that all personnel are working with the approved version of the pre-flight procedures.