# The Air Navigation Order 2016, Article 35: Requirement for a certificate of release to service for Part-21 aircraft

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

A Part-21 aircraft must not fly when a certificate of release to service is required by or under Part M or Part 145 unless such a certificate has been issued in accordance with Part M or Part 145 and is in force.

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Source: https://www.legislation.gov.uk/uksi/2016/765/article/35 (the official version)
Page: https://openlegislation.uk/air-navigation-order-2016/article-35
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.