Regulations & currency
Oxygen requirements
Crew and passenger oxygen rules by cabin altitude and time.
Framework only, the exact cabin altitudes and times are set in GACAR Part 91. Confirm there before relying on it.
| Cabin pressure altitude | Requirement |
|---|---|
| Above ~10,000 ft for an extended period | Supplemental oxygen for the flight crew |
| Above ~13,000 ft | Oxygen for the flight crew at all times |
| Sustained high cabin altitude | Oxygen provided for the passengers |
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How it works
Supplemental-oxygen requirements increase with cabin altitude and exposure time. The exact thresholds are in GACAR Part 91, this shows the structure only.
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