Senate committee substitute makes the following changes to the 3rd edition. 

Amends proposed subsection (q2) in GS 20-7, directing the Division of Motor Vehicles (DMV) to develop a deaf or hard of hearing designation for driver's licenses, by replacing references to a numerical identifier and instead referring to a symbol that is to be placed on the driver's license at the request of a person who is deaf or hard of hearing. Adds three new requirements to those previously proposed which the DMV must comply with in developing and granting the designation: (1) limits the availability of information collected under new subsection (q2) to law enforcement, and only for the purpose of ensuring mutually safe interactions between law enforcement and persons who are deaf or hard of hearing; (2) specifies that the right to make the decision for inclusion or removal of the designation from the database to be entirely voluntary and can only be made by the person who holds the driver's license associated with the designation; and (3) directs the DMV, in conjunction with the Department of Health and Human Services, to develop a process for removal of the designation that is available online, by mail, and in person.