# 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 (c): The operator shall determine the mass of all operating items and crew members included in the aircraft dry operating mass by actual weighing, including any crew baggage, or by using standard masses. The influence of their position on the aircraft’s CG shall be determined. When using standard masses the following mass values for crew members shall be used to determine the dry operating mass:

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

(1) 85 kg, including hand baggage, for flight crew/technical crew members; and
(2) 75 kg for cabin crew members.

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Source: https://www.legislation.gov.uk/eur/2012/965/annex/VI/division/subpart+c/division/nccpol105/division/c (the official version)
Page: https://openlegislation.uk/eu-regulation-2012-965/annex-VI/division-subpart+c/division-nccpol105/division-c
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.