(A) Each person engaged in plumbing inspections shall possess a valid certificate as a plumbing inspector issued by the superintendent. Such certificates shall be issued for a period of one year.
(B) Application for renewal of a plumbing inspector certificate shall be made by the holder of such a certificate not less than sixty days prior to the termination date of the certificate, on forms furnished by the superintendent or his designee.
(C) For renewal of a plumbing inspector certificate without examination the applicant shall complete a minimum of ten hours of courses approved by the superintendent or his designee. Four hours out of the ten hours of courses shall be conducted by the plumbing section of the division of industrial compliance.