Prior to January 1, 1996, the State Fire Marshal in conjunction with the Occupational Safety and Health Standards Board shall, after public hearings, adopt by reference the 1992 edition of the NFPA 58 Standard for the Storage and Handling of Liquified Petroleum Gasses, or as this 1992 edition may be subsequently amended or supplemented. It is the intent of the Legislature that the NFPA 58 Standard supersede any inconsistent state standards, including, but not limited to, Sections 470 to 494, inclusive, of Chapter 4 of Title 8 of the California Code of Regulations, except where Sections 470 to 494, inclusive, of Chapter 4 of Title 8 of the California Code of Regulations contain a more stringent safety standard than that contained in the NFPA 58 Standard. Nothing in this section prohibits the board from adopting more stringent standards than those contained in the NFPA 58 Standard.