I saw this story on the news last night and found it to be very interesting. You can link your drivers license to emergency contact information on yourself. I don’t know if they are doing this anywhere other than Florida. Here is the information.
This service will allow you to provide emergency contact information to law enforcement in the event of an emergency. This information may save crucial time if ever it becomes necessary to contact family members, or other loved ones. This service is only available to individuals holding a current Florida Driver License or Florida Identification Card.
To submit your contact information, first provide your current Florida Driver License or ID card number and your date of birth.
Here is the link to the website in Florida https://www6.hsmv.state.fl.us/dlcheck/findcustomer