# 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 ensure that at least for the duration of each flight or series of flights:

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

(1)information relevant to the flight and appropriate for the type of operation is preserved on the ground;
(2)the information is retained until it has been duplicated at the place at which it will be stored; or, if this is impracticable
(3)the same information is carried in a fireproof container in the aircraft.

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Source: https://www.legislation.gov.uk/eur/2012/965/annex/IV/division/subpart+a/division/section+1/division/catgenmpa185/division/a (the official version)
Page: https://openlegislation.uk/eu-regulation-2012-965/annex-IV/division-subpart+a/division-section+1/division-catgenmpa185/division-a
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.