# 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 (a): The operator shall establish a mass and balance system in order to determine for each flight or series of flights the following:

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

(1) aircraft dry operating mass;
(2) mass of the traffic load;
(3) mass of the fuel or energy load;
(4) aircraft load and load distribution;
(5) take-off mass, landing mass and zero fuel or energy mass;
(6) applicable aircraft CG positions.

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Source: https://www.legislation.gov.uk/eur/2012/965/annex/VIII/division/subpart+c/division/spopol110/division/a (the official version)
Page: https://openlegislation.uk/eu-regulation-2012-965/annex-VIII/division-subpart+c/division-spopol110/division-a
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.