“Regulation” means a rule, regulation, order or standard, having the force of law, adopted by an employee or agency of the United States pursuant to the federal Administrative Procedure Act (Chapter 5 (commencing with Section 500) of Title 5 of the United States Code) or as a regulation by an agency of the state pursuant to the Administrative Procedure Act (Chapter 3.5 (commencing with Section 11340) of Part 1 of Division 3 of Title 2).