1. (a) This subarticle applies to owners and drivers of the following equipment when driven on a highway within California, as well as motor carriers, California-based brokers, and California-based shippers that use, or cause to be used, the following equipment on a highway within California:

   1. (1) HD tractors that pull 53-foot or longer box-type trailers; and
   2. (2) 53-foot or longer box-type trailers that are pulled by HD tractors.

2. (b) The requirements in this subarticle do not apply to the following trailer types and the tractors that pull them:

   1. (1) drop-frame trailers;
   2. (2) chassis trailers;
   3. (3) curtain-side trailers;
   4. (4) livestock trailers;
   5. (5) refuse trailers;
   6. (6) box-type trailers less than 53 feet in length;
   7. (7) emergency vehicles;
   8. (8) military tactical support vehicles;

3. (c) In accordance with the provisions of section 95305, Exemptions, specified requirements of this subarticle do not apply to:

   1. (1) local-haul trailers and the tractors pulling local-haul trailers,
   2. (2) local-haul tractors and the trailers pulled by local-haul tractors,
   3. (3) short-haul tractors and the trailers pulled by short-haul tractors,
   4. (4) drayage tractors and the trailers pulled by drayage tractors,
   5. (5) storage trailers and the tractors pulling storage trailers, and
   6. (6) empty 53-foot and longer box-type trailers pulled by HD tractors.

For purposes of this section, any cross-referenced section in title 13 or title 17 of the California Code of Regulations shall refer to the section identified as the alternative version “(Alternative)” for the corresponding section, to the extent an alternative version of that section exists.

Note: Authority cited: Sections 39600, 39601, 38510, 38560 and 38560.5, Health and Safety Code. Reference: Sections 39600, 38560, 38560.5 and 38580, Health and Safety Code.

History

1. New section filed 10-2-2025 as an emergency; operative 10-2-2025 (Register 2025, No. 40). A Certificate of Compliance must be transmitted to OAL by 4-1-2026 or emergency language will be repealed by operation of law on the following day.

2. New section refiled 3-26-2026 as an emergency; operative 4-1-2026 (Register 2026, No. 13). A Certificate of Compliance must be transmitted to OAL by 6-30-2026 or emergency language will be repealed by operation of law on the following day.