# The Air Navigation Order 2016, Paragraph 10: Definitions and validity periods


For the purposes of this Part—
(a) “visual flight conditions” means weather conditions such that the pilot is able to fly by visual reference to objects outside the aircraft;
(b) “instrument flight conditions” means weather conditions such that the pilot is unable to fly by visual reference to objects outside the aircraft;
(c) a “valid test result” is a test result—
(i) where the person tested met the minimum standard set in relation to the test; and
(ii) the test validity period has not expired in relation to that test;
(d) “test validity period”, subject to paragraph 6, means a period commencing with the date of test and ending—
(i) in the case of paragraph 2(8), three months;
(ii) in the case of paragraphs 2(1)(b), 2(5)(b), 2(6)(a), 2(7)(b) and 3(1)(b), six months; and
(iii) in the case of paragraphs 1, 2(1)(a), 2(5)(a), 2(7)(a), 3(1)(a), 4 and 5(1), 13 months,
after the end of the month in which the test was taken.

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Source: https://www.legislation.gov.uk/uksi/2016/765/schedule/9/paragraph/10 (the official version)
Page: https://openlegislation.uk/air-navigation-order-2016/schedule-9/paragraph-10
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.