# Commission Regulation (EU) No 965/2012 of 5 October 2012 laying down technical requirements and administrative procedures related to air operations pursuant to Regulation (EC) No 216/2008 of the European Parliament and of the Council, Division NCC.OP.210: Use of supplemental oxygen

Extent: E+W+S+N.I.

The pilot-in-command shall ensure that he/she and flight crew members engaged in performing duties essential to the safe operation of an aircraft in flight use supplemental oxygen continuously whenever the cabin altitude exceeds 10 000 ft for a period of more than 30 minutes and whenever the cabin altitude exceeds 13 000 ft.

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Source: https://www.legislation.gov.uk/eur/2012/965/annex/VI/division/subpart+b/division/nccop210 (the official version)
Page: https://openlegislation.uk/eu-regulation-2012-965/annex-VI/division-subpart+b/division-nccop210
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.