664For purposes of this Rule, the term "signature" shall include an electronic or digital form of signature, to the extent that such form of signature is recognized as a valid signature under applicable federal law or state contract law.
665 For purposes of this Rule, the term "signature" shall include an electronic or digital form of signature, to the extent that such form of signature is recognized as a valid signature under applicable federal law or state contract law.
666 This provision does not affect any seller's or telemarketer's obligation to comply with relevant state and federal laws, including but not limited to the TCPA, 47 U.S.C. 227, and 47 CFR part 64.1200.
16 C.F.R. §310.4