(a) If a provision of this chapter or of a regulation adopted by the commissioner under this chapter conflicts with the charter, ordinance, or regulation of a municipality, the provisions of this chapter or of the regulation adopted by the commissioner under this chapter prevails.
(b) Authority to contain, clean up, or prevent a release or threatened release of oil or of a hazardous substance, and to exercise other powers necessary to implement this chapter, AS 46.04, and AS 46.08, are granted to municipalities that do not otherwise have that authority. Except as provided in (a) of this section, a municipality may exercise its police power within the area of the municipality.