Haw. Code R. § 19-42-103
No vessel containing more than five hundred pounds of Class A, one ton of Class B, [and] or ten tons of Class C explosives (net explosive content) shall enter or be loaded in any harbor in the State except on prior written permission of the harbor master of the district concerned, or the director. The harbor master or the director shall set forth the specific berth to be used and any special instructions to be followed. No Class A explosives, as defined by the United States Coast Guard in its regulations in existence as of June 1, 1993, will be admitted in any harbor in quantities in excess of the limitations established by the United States Coast Guard for the various harbors unless otherwise authorized by the director in writing. Other cargo may not be moved concurrently with Class A explosive cargo.
Haw. Code R. § 19-42-103
See also § 19-42-8