4   Sale of motor vehicles generally

For the purposes of section 136 of the Act:

(a)  motor vehicles, other than special purpose motor vehicles, are a prescribed class of articles, and

(b)  the prescribed level for a motor vehicle of a particular type that is certified to ADR 83/00 is:

(i)  if the compliance plate date of the vehicle is on or before 1 September 2011—the noise level established by ADR 83/00 for a motor vehicle of that type when stationary plus 5 dB(A) or the noise level specified in Schedule 1 for a motor vehicle of that type, whichever is the greater, and

(ii)  in any other case—the noise level established by ADR 83/00 for a motor vehicle of that type when stationary plus 5 dB(A), and

(c)  the prescribed level for a motor vehicle of a particular type that is not certified to ADR 83/00 is the noise level specified in Schedule 1 for a motor vehicle of that type.