(a) The department may by regulation adopt amendments to the National Electrical Code as approved and issued by the American National Standards Institute.
(b) AS 18.60.580 — 18.60.660 do not affect the authority of any municipality or rural electrification association to prescribe by ordinance, rule, or order standards for their respective areas of jurisdiction not less stringent than the standards prescribed by the department or those established under AS 18.60.580.