Haw. Code R. § 19-20.1-61
Permittees who provide off-airport rent-a-car ground transportation services in or at public airports shall be obligated to maintain a record and original source documents which shall account for all of the vehicles in the permittee' fleet as of October 1 each year, segregated by airport districts. The record, including original source documents, shall be kept for three years in the State following the end of the permit year. The State shall be granted access at all reasonable times to all such records and documents and may make or cause to be made a complete audit to verify the reasonableness of the reported number of vehicles in the permittee's fleet as of October each year. In the event that records and original source documents have not been kept in accordance with this provision, the State, shall in addition to other payments required by this chapter, be entitled to demand and receive an additional payment of ten percent of the total amount payable by the off-airport rent-a-car ground transportation service permittee to the State under this subchapter.
Haw. Code R. § 19-20.1-61