Regulation 4 of the Principal Regulations is rescinded and the following regulation is substituted:

4.     Measurement of noise

For the purposes of these regulations –

(a) any measurement of noise or any test of a noise source must be carried out in accordance with the Noise Measurement Procedures Manual issued by the Director and notified in the Gazette on 11 August 2004, as amended on 13 July 2005; and

(b) the level of any noise is taken to be the A-weighted sound pressure level of that noise expressed in dB(A).