Canadian flight-crew fatigue rules · CARs Subpart 700

Work out your maximum Flight Duty Period

Enter your report time, number of flights and crew setup. The calculator returns the maximum FDP allowed under CARs 700.28 — and shows exactly which table and rule it used.

Maximum flight duty period 13:00

Show the working

Base maximum FDP13:00Average flight duration 50 minutes or more: CARs 700.28(4), start-time row 07:00–12:59, 1 to 4 flights column.CARs 700.28(4)

Educational aid, not legal advice. This does not cover positioning, delayed reporting (700.52), disruptive-schedule or time-zone rest, or UOC extensions (700.63). Verify against the current CARs and your Operations Manual.

Open the full calculator page Cheat Sheet Browse the rules

Common questions

What does "acclimatized" mean and why does it matter?
How do split flight duty periods work?
What is a disruptive schedule?
Who has the authority to extend an FDP — the operator or the PIC?

All questions →

The rules by topic

Flight duty period CARs 700.28
Flight time limits 112 / 300 / 1,000 hours
Rest periods CARs 700.40
Split flight duty CARs 700.50
Augmented crew CARs 700.60
Disruptive schedules CARs 700.41

All topics →

Rebuilt from the long-running Google Site. Focused on the rules currently in force; the history of the 2018 changes lives in The 2018 changes.