34019.  (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.


34020.5.  (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.



34021.  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.



34022.  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.


34024.  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division shall be adopted, amended, and repealed in accordance with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.