The document discusses strong authentication and the US Federal Digital Services. It describes Authenticator Assurance Levels (AAL), with AAL3 providing the highest level of remote network authentication by requiring proof of possession of a hardware cryptographic key. AAL3 authenticators must be validated at FIPS 140 Level 2 or higher, with single-factor ones at Level 1. The document raises implementing AAL3 and a new interoperability target as issues and provides contact information for further discussion.