Hawaii Revised Statutes Division 1. Government § 286-222

(a) The department of transportation may regulate the transportation of hazardous materials by motor carrier in commerce.

(b) The department shall annually adopt the hazardous material regulations established by the United States Department of Transportation and published in Title 49, Code of Federal Regulations, Parts 107, 171 to 173, inclusive, and Parts 177, 178, and 180. All other rules adopted by the State and political subdivisions thereof shall be consistent therewith.

(c) Any hazardous material which meets the federal and state criteria of a hazardous material must be handled and transported according to the appropriate requirements of the federal hazardous materials regulations and the additional requirements in this part.