ADVOKS GLOBAL · KENYA
The Civil Aviation (Environmental Protection Aircraft Noise) Regulations, 2025
59. Noise certification reference procedures-General conditions
Edition: 2026-03-03 · In force
59. Noise certification reference procedures-General conditions
(1)The calculations of reference procedures and flight paths shall be approved by the certificating authority.(2)Except in conditions specified under regulation 60(3), the take-off reference procedure shall be that defined under regulation 61.(3)Where it is shown by the applicant that the design characteristics of the aeroplane would prevent flights being conducted in accordance with regulation 61, the reference procedures shall—(a)depart from the reference procedures defined only to the extent demanded by those design characteristics which make compliance with the procedures impossible; and(b)be approved by the certificating authority.(4)The reference procedures shall be calculated under the following atmospheric conditions—(a)atmospheric pressure at sea level of 1 013.25 hPa, decreasing with altitude at a rate defined by the ICAO Standard Atmosphere;(b)ambient air temperature at sea level of 15°C, decreasing with altitude at a rate defined by the ICAO Standard Atmosphere (i.e. 0.65°C per 100 m);(c)constant relative humidity of 70 per cent;(e)details for calculating the variation of reference atmospheric pressure with altitude are specified by the Authority.(5)The acoustic reference atmospheric conditions shall be the same as the reference atmospheric conditions for flight.