(a) Motor carriers operating any vehicle described in subdivision (a), (b), (e), (f), (g), or (k) of Section 34500, except those vehicles exempted under Section 34501.12, shall, as a part of the systematic inspection, maintenance, and lubrication services required of all motor carriers, require the vehicle or vehicles for which it is responsible pursuant to Section 34501.12 to be inspected at least every 90 days, or more often if necessary to ensure safe operation. Vehicles that are out of service for periods greater than 90 calendar days are not required to be inspected at 90-day intervals if they are inspected before operation on the highway. This inspection shall include, but not be limited to, all of the following:

1. (1) Brake adjustment.
2. (2) Brake system components and leaks.
3. (3) Steering and suspension systems.
4. (4) Tires and wheels.
5. (5) Vehicle connecting devices.

(c) Records of inspections conducted pursuant to subdivision (a) shall be kept at the motor carrier’s terminals, as designated in accordance with Section 34501.12. The records shall be retained by the motor carrier for two years, and shall be made available for inspection upon request by any authorized employee of the department. Each record shall include, but not be limited to, all of the following:

1. (1) Identification of the vehicle, including make, model, license number, company vehicle number, or other means of positive identification.
2. (2) Date and nature of each inspection and any repair performed.
3. (3) Signature of the motor carrier’s authorized representative attesting to the inspection and to the completion of all required repairs.