An Act allowing blood types to be printed on licenses to operate motor vehicles

HD 3963 allows Massachusetts drivers to voluntarily include their blood type on REAL-ID-compliant or standard driver's licenses. Applicants or license holders may request this addition, and the state's motor vehicle registrar must provide the option to print it. The bill directly affects license holders who choose this feature but does not require any driver to include blood type information. This is a procedural change to license design, not a requirement for all drivers.