The record of the department relating to the first proceeding and conviction for a driver licensed with a class A license, class B license, or commercial class C driver’s license in any 18-month period who is allowed, for a traffic offense while operating a vehicle requiring only a class C or a class M license, to complete a course of instruction at a traffic violator school, is not confidential and shall be disclosed for purposes of Title 49 of the Code of Federal Regulations and to insurers by the department for insurance underwriting and rating purposes.