Article 2. Regulations of California Vehicle Code >> Division 14.7. >> Article 2.

(a) The commissioner shall adopt reasonable regulations with respect to the following:
  (1) The design, construction, and structural safety of cargo tanks and fire auxiliary equipment.
  (2) To the extent permitted by federal law, the stability of tank vehicles.
  (b) For intrastate shipments in this state, the commissioner shall, as soon as feasible, incorporate any new United States Department of Transportation standards concerning interstate shipments.
(a) The Department of Transportation, after consultation with the Department of the California Highway Patrol, the State Fire Marshal, and affected local agencies, and following a public hearing subject to Section 21109.5, may regulate the time when tank vehicles may travel through a tunnel on state highways.
  (b) In evaluating the use of a tunnel on a state highway, the Department of Transportation shall conduct a traffic and engineering survey which includes an analysis of the relative risks to public safety in determining the feasibility of reasonable alternative routes.
  (c) For the purposes of this section, a tunnel is a horizontal passage enclosed on the sides and top containing a roadway of a length of not less than 300 feet.
  (d) No prohibition or restriction adopted pursuant to this section shall be effective until appropriate signs have been posted giving notice thereof to drivers approaching the tunnel.
The regulations adopted by the commissioner shall make reasonable allowances for cargo tanks in existence when the regulations become effective. No allowance shall, however, be made for any cargo tank which because of its design or construction constitutes a distinct hazard to life or property.
In adopting the regulations, the commissioner shall consider, as evidence of generally accepted safety standards, the publications of the National Fire Protection Association and the United States Department of Transportation.
The regulations adopted by the commissioner pursuant to this division shall be adopted, amended, and repealed in accordance with Chapter 3.5 (commencing with Section 11340) of Part 1 of Division 3 of Title 2 of the Government Code.