This Standard provides methods for measurement of the impact of noise from existing or proposed helicopter operations on the surrounding community. It applies to the noise generated by helicopters on the ground, on approach and departure, and en route. This Standard does not provide an evaluation of the noise compatibility of sites considered for helicopter operation as criteria for the assessment of helicopter sites are governed by the environmental authority in each State.

NOTES:

1 Operations of helicopters en route come under the Civil Aviation Regulations (CAR) or Civil Aviation Orders (CAO).

2 Applications to the appropriate Aviation Authorities to approve a variation from the conditions of CAR and CAO are assessed for environmental effects under the Environment Protection (Impact of Proposals) Act.