14 CFR · Part 117
14 CFR § 117.13
Flight duty period: Unaugmented operations.
Except as provided for in § 117.15, no certificate holder may assign and no flightcrew member may accept an assignment for an unaugmented flight operation if the scheduled flight duty period will exceed the limits in Table B of this part.
If the flightcrew member is not acclimated:
The maximum flight duty period in Table B of this part is reduced by 30 minutes.
The applicable flight duty period is based on the local time at the theater in which the flightcrew member was last acclimated.
Referenced By
Documents that cite this section, found in their catalog metadata or text. Listed by date, not by significance.
Regulations Referenced
Reflects the eCFR edition current as of September 29, 2026. Retrieved from ecfr.gov on October 16, 2026.
Primary Source