Haw. Rev. Stat. § 147-125: Rules.

The department shall have the necessary powers to carry out and effectuate the purposes of this part, and, subject to chapter 91, may adopt rules with respect to:

(1) Standards for grades, genetic purity, identity, quality, and condition of seed;

(2) Procedures for certifying seed; and

(3) Other matters necessary to carry out the purposes of this part.