Haw. Rev. Stat. § 340F-7: Rules.

The board shall adopt rules as may be necessary for the administration of this chapter, which shall include at least the following provisions:

(1) The basis for classification of water treatment plants and distribution systems as required by section 340F-2;

(2) Criteria for the qualification of applicants for operator certification corresponding to each of the classifications referred to in paragraph (1);

(3) Procedures for examination of candidates and renewal of certificates; and

(4) Procedures for the revocation of certificates.