# The Air Navigation Order 1989, Paragraph 7: Period of Validity of Certificate of Experience


A certificate of experience in respect of a Commercial Pilots Licence (Balloons) shall not be valid more than 13 months after it was signed and in respect of any other licence shall not be valid more than 6 months after it was signed for Case D nor more than l3 months after it was signed for any other Case.

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Source: https://www.legislation.gov.uk/uksi/1989/2004/schedule/8/paragraph/7 (the official version)
Page: https://openlegislation.uk/air-navigation-order-1989/schedule-8/paragraph-7
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.