42 U.S.C. § 6991g : US Code - Section 6991G: State authority

Search 42 U.S.C. § 6991g : US Code - Section 6991G: State authority

Nothing in this subchapter shall preclude or deny any right of
any State or political subdivision thereof to adopt or enforce any
regulation, requirement, or standard of performance respecting
underground storage tanks that is more stringent than a regulation,
requirement, or standard of performance in effect under this
subchapter or to impose any additional liability with respect to
the release of regulated substances within such State or political
subdivision.