CA Veh Code Section 2525.4

(a)

Fleet owners licensed as inspection and maintenance stations shall do all of the following:

(1)

Conduct all installations, adjustments, inspections, and maintenance under the supervision of, and subject to the regulations of, the department, and subject to Division 12 (commencing with Section 24000).

(2)

If engaged in interstate transportation, also conduct inspections and maintenance in accordance with the requirements of the United States Department of Transportation.

(3)

If operating or maintaining vehicles described in subdivisions (a), (b), (d), (e), (f), or (g), of Section 34500, enroll each licensed inspection and maintenance station for inspection by the Department of the California Highway Patrol pursuant to subdivision (d) of Section 34501.12 and pay the fees required by subdivision (e) of that section.

(b)

Fleet owners may not certify the adjustment of lamps or brakes or the installation, inspection, repair, or servicing of motor vehicle pollution control devices or systems, except for vehicles in the owner’s fleet.