Haw. Rev. Stat. § 149A-18: Denial, suspension, or revocation of permit.

The department may deny issuance of a permit to sell a restricted use pesticide for reasonable cause. Any permit issued pursuant to rules adopted under section 149A-17 may be suspended or revoked by the department, after due hearing, for violation of any condition of the permit or of any law or rule pertaining to the sale of pesticides.

Any order made by the department for the suspension or revocation of a permit shall be in writing and shall set forth the reasons for the suspension or revocation.

The action of the department in suspending or in revoking a permit may be reviewed in the manner provided by chapter 91.