The department, with the advice of the Water and Wastewater Works Advisory Board, shall adopt regulations for administration of this chapter. The regulations must include
(1) the basis for classification of potable water supply and wastewater systems and facilities, including the type and size of lesser systems and facilities, if any, to which the provisions of this chapter do not apply, as required by AS 46.30.010;
(2) criteria for the qualification of applicants for operator certification corresponding to each of the classifications referred to in AS 46.30.010;
(3) procedures for examination of candidates and renewal of certificates;
(4) procedures for the revocation of certificates;
(5) determination as to which additional personnel shall be certified when certification is required for more than the operator in direct responsible charge.