(a) The commissioner of public safety and members of the Department of Public Safety, and such other officers and employees of the department as the commissioner may designate, may at any time, upon reasonable cause to believe that a vehicle is unsafe or not equipped as required by law or that its equipment is not in proper adjustment or repair, require the driver of such vehicle to stop and submit such vehicle to an inspection and such tests with reference thereto as may be appropriate.

(b) In the event such vehicle and its equipment are found to be in safe condition and in full compliance with the law, the officer making such an inspection shall issue to the driver an official certificate of inspection and approval of such vehicle specifying those parts or equipment so inspected and approved.

(c) In the event such vehicle is found to be in unsafe condition or any required part or equipment is not present or is not in proper repair and adjustment, the officer shall give a written notice to the driver and shall send a copy to the department. Such notice shall require that such vehicle be placed in safe condition and its equipment in proper repair and adjustment specifying the particulars with reference thereto and shall require that a certificate of inspection and approval be obtained within 30 days.