(a) The Department of Motor Vehicles shall not identify any new off-highway motor vehicle, which is subject to identification and which produces a maximum noise level that exceeds the following noise limit, at a distance of 50 feet from the centerline of travel, under test procedures established by the Department of the California Highway Patrol.

(h) On and after January 1, 2003, off-highway motor vehicles, when operating pursuant to Section 38001, shall at all times be equipped with a silencer, or other device, which limits noise emissions.

1. (1) Noise emissions of competition off-highway vehicles manufactured on or after January 1, 1998, shall be limited to not more than 96 dBA, and if manufactured prior to January 1, 1998, to not more than 101 dBA, when measured from a distance of 20 inches using test procedures established by the Society of Automotive Engineers under Standard J-1287, as applicable. Noise emissions of all other off-highway vehicles shall be limited to not more than 96 dBA if manufactured on or after January 1, 1986, and not more than 101 dBA if manufactured prior to January 1, 1986, when measured from a distance of 20 inches using test procedures established by the Society of Automotive Engineers under Standard J-1287, as applicable.
2. (2) The Off-Highway Motor Vehicle Recreation Division of the Department of Parks and Recreation shall evaluate and reassess the dates specified in paragraph (1) and include the findings and recommendations in the noise report required in subdivision (o) of Section 5090.32 of the Public Resources Code.