Haw. Code R. § 19-44-6
For all delinquent payments due the State, interest shall be charged at the rate of one per cent per month on the unpaid balance, including prior interest charges and delinquent account service charges beginning on the first day payment is delinquent and continuing monthly thereafter until the amount due is paid. Without prejudice to any other remedy available to the State, a delinquent account service charge of $33.00 per month shall be assessed on any delinquency regardless of the amount thereof. The interest charge and delinquent account service charge shall continue to be assessed until the delinquency is paid in full. Payments are considered delinquent when not paid within thirty calendar days from date of invoice except that the payment of wharfage is considered delinquent if not paid within forty-five days after date of completion of handling cargo over state wharves for a particular voyage. Wharfage reports which are submitted on a monthly basis, in accordance with section 19-44-61(c), are delinquent fifteen days after the last day of the month being reported.
Haw. Code R. § 19-44-6