What's the difference between the ESIGN Act and UETA?
Individual states have their own electronic signature laws based on UETA that interact in complex ways with the national ESIGN law. Since part of the purpose of the national law is to harmonize the state laws, there are limits on how much states can deviate.
As a result, there are few significant differences between federal and state law on most issues relevant to designing an effective electronic signature process. Even so, always be sure to consult with your legal counsel on special exceptions that may apply to your business.