AMC1 SPO.OP.120 Noise abatement procedures
CAA ORS9 Decision No. 1
NADP DESIGN — OPERATIONS WITH COMPLEX MOTOR-POWERED AIRCRAFT
(a) For each aeroplane type two departure procedures should be defined, in accordance with ICAO Doc. 8168 (Procedures for Air Navigation Services, ‘PANS-OPS’), Volume I:
(1) noise abatement departure procedure one (NADP 1), designed to meet the close-in noise abatement objective; and
(2) noise abatement departure procedure two (NADP 2), designed to meet the distant noise abatement objective.
(b) For each type of NADP (1 and 2), a single climb profile should be specified for use at all aerodromes, which is associated with a single sequence of actions. The NADP 1 and NADP 2 profiles may be identical.