Haw. Rev. Stat. § 486-55: General duties and powers.

The board may:

(1) Enforce and administer this part by inspections, analyses, and other appropriate actions;

(2) Have access during normal business hours to all places where petroleum products are marketed or being held for the purpose of examination, inspection, taking of samples, and investigation. If such access is refused by the owner or agent or other persons leasing the same, the board or its agent may obtain a search warrant from a court of competent jurisdiction;

(3) Collect, or cause to be collected, samples of petroleum products marketed or being held in this State, and cause such samples to be tested or analyzed for compliance with this part; and

(4) Issue a stop-sale order for any petroleum product found not to be in compliance and remand said stop-sale order if the petroleum product is brought into full compliance with this part.