16 C.F.R. § 444.5
(a) If, upon application to the Federal Trade Commission by an appropriate State agency, the Federal Trade Commission determines that:
(2) The State requirement or prohibition affords a level of protection to consumers that is substantially equivalent to, or greater than, the protection afforded by this rule;
Then that provision of the rule will not be in effect in that State to the extent specified by the Federal Trade Commission in its determination, for as long as the State administers and enforces the State requirement or prohibition effectively.