What are digital IDs and mobile driver’s licenses?

A digital ID is an electronic representation of personally identifying information (PII) that may be used to verify the identity of a person. 

A mobile driver's license is a type of digital ID issued by a state. It is a digital representation of the information contained on a state-issued physical driver’s license or ID card that is stored on a mobile electronic device such as a smartphone and read electronically through a secure transaction. Use of a mobile driver’s license requires biometric verification prior to each transaction. 

A digital ID may also be issued by a non-governmental entity based on information derived from governmental or non-governmental sources.