(a) Any rates, rating schedules or rating manuals for the liability, personal injury protection and collision coverages of a motor vehicle insurance policy submitted to or filed with the Insurance Commissioner shall provide for an appropriate reduction in premium charges as to such coverages when the principal operator and spouse on the covered vehicle is an insured who is fifty-five years of age or older and who has successfully completed a motor vehicle accident prevention course approved by the Division of Motor Vehicles. Such reductions of premium rates shall be made in compliance with the provisions of subsections (a) and (b), section three of this article. Any discount used by an insurer shall be presumed appropriate unless credible data demonstrates otherwise.

(b) The premium reduction required by this section shall be effective for an insured and spouse for a three-year period after successful completion of the approved course, except that the insurer may require, as a condition of maintaining the discount, that the insured and spouse:

(1) Not be involved in an accident for which the insured or spouse is at fault;

(2) Not be convicted, plead guilty or nolo contendere to a moving traffic violation, or to a traffic related alcohol or narcotics offense; and

(3) Have maintained a driving record free of violations and liability for accidents for a three-year period prior to course completion.

(c) Upon successfully completing the approved course, each person shall be issued a certificate by the organization offering the course which shall be used to qualify for the premium discount required by this section.

(d) This section shall not apply in the event the approved course is taken as punishment specified by a court or other governmental entity resulting from a moving traffic violation.

(e) An insured shall only be entitled to a discount equal to the greater of the premium reduction required by this section or any discretionary discount offered by insurers to persons fifty-five years of age or older who have not completed the approved motor vehicle accident course and specifically shall not be entitled to more than one discount.

(f) Each participant shall take an approved course every three years to continue to be eligible for the reduction in premiums.