There are both mandatory and optional data elements specified for mDLs. Issuing authorities will determine the optional data elements that they will support in their mDL implementation. Mandatory information reflects what is displayed on a physical driver’s license, such as name, a portrait, birth date, issue date, expiry date and driving privileges. Examples of optional information are gender, height and weight, age in years, and nationality.
The mDL Holder controls access to the data when responding to a Verifier request. The mDL Holder accesses, or allows access to, the data contained in the mDL through a downloadable app (an application container or wallet) approved by the issuing authority. The app allows Holders to determine whether, to whom, and what mDL data they wish to share during a specific encounter.