17 CFR 160.17: Relation to state laws.

(a) In general. This part shall not be construed as superseding, altering or affecting any statute, regulation, order or interpretation in effect in any state, except to the extent that such state statute, regulation, order or interpretation is inconsistent with the provisions of this part, and then only to the extent of the inconsistency.

(b) Greater protection under state law. For purposes of this section, a state statute, regulation, order or interpretation is not inconsistent with the provisions of this part if the protection such statute, regulation, order or interpretation affords any person is greater than the protection provided under this part, as determined by the Bureau of Consumer Financial Protection, after consultation with the Commission, on its own motion or upon the petition of any interested party.