Document ID: chunk:federal_register_of_legislation:F2025C00187:reg:2:p1
Version: federal_register_of_legislation:F2025C00187
Segment Type: reg
Provision Reference: reg 2 (pt 1/7)
Character Range: 340795–343603

2     Passenger                                   (a) For any period when the cabin pressure altitude is at least FL 150, there must be supply for the entire period.
                                                  (b) Without otherwise affecting paragraph (a), when a pressurised aircraft is flown at an altitude of FL 250 or more (relevant flight), there must be at least 10 minutes supply after descending below FL 250 even if the entire period of relevant flight is less than 10 minutes.

26.44 Oxygen mask usage requirements — pressurised aircraft above FL 250
       (1) In this section:
quick-donning mask means an oxygen mask that:
(a) is for a flight crew member's personal use; and
(b) within 5 seconds of it being deployed and ready for use, the flight crew member can, with 1 hand, place over the face, secure and seal.
       (2) This section applies for a flight of a pressurised aircraft that is flown above FL 250 at any time during the flight.
       (3) At least 1 pilot occupying a pilot seat must:
(a) be wearing a sealed oxygen mask (securely worn) that:
           (i) is being supplied with supplemental oxygen; or
           (ii) automatically supplies supplemental oxygen when the cabin pressure altitude is at or above FL 140; or
(b) have access to a quick-donning mask that is supplied with supplemental oxygen when the mask is donned.
       (4) During the period when the aircraft is flown above FL 450, at least 1 pilot occupying a pilot seat must be wearing 1 of the following that is being supplied with supplemental oxygen:
(a) a sealed oxygen mask (securely worn); or
(b) a quick-donning mask.

26.45 Protective breathing equipment — flight crew members
       (1) When a pressurised aircraft begins a flight with at least 2 pilots, as required by or under the civil aviation legislation or the AFM, it must be carrying protective breathing equipment (PBE) for each flight crew member in accordance with this section.
       (2) The PBE must:
(a) protect the wearer's eyes, nose and mouth; and
(b) the part protecting the wearer's eyes:
 (i) must not adversely affect vision in any noticeable way; and
           (ii) must allow corrective glasses to be worn in a normal position; and
(b) be able to supply oxygen continuously for at least 15 minutes.
       Note   The oxygen supply for the PBE for each flight crew member can be provided by the supplemental oxygen required under section 26.43.
       (3) The PBE for a flight crew member must be accessible for immediate use at the flight crew member's crew station.
       (4) The PBE must not prevent, or be likely to prevent, a flight crew member from effectively using any crew intercommunications or radiocommunications equipment fitted to or carried on the aircraft.

26.46 Portable protective breathing equipment