Haw. Rev. Stat. § 107-32: [ §107-32] Refrigerant use.

[ §107-32] Refrigerant use. No provision of the Hawaii state building codes or any county building code shall prohibit or otherwise limit the use of a refrigerant designated as acceptable for use pursuant to title 42 United States Code section 7671k; provided that any equipment containing the refrigerant shall be listed and installed in accordance with any applicable safety standards and use conditions imposed for that equipment or refrigerant.