Enacts new subdivision (7) to GS 150B-19 to prohibit an agency from adopting a rule that imposes a more restrictive standard or limitation than standards or limitations imposed by federal law or rule as applicable, unless adoption of the rule is required to respond to at least one of the following five listed circumstances: (1) serious, unforeseen threat to public health, safety, or welfare; (2) state or federal act expressly requiring adoption of rules; (3) change in budgeting policy; (4) federal regulation; or (5) a court order. Applies to rules adopted by an agency on or after the date the act becomes law.