What aspect does the Highway Traffic Act primarily address?

The Highway Traffic Act primarily addresses the registration and licensing of vehicles because it serves as a legal framework that governs the operation of motor vehicles and the conduct of drivers on public roads. This Act outlines the requirements for vehicle registration—ensuring that all vehicles are properly documented and can be legally operated—which contributes to highway safety and accountability.

Additionally, it encompasses the licensing of drivers, specifying the qualifications, testing, and standards required for individuals to hold a driver's license. By enforcing these regulations, the Highway Traffic Act aims to promote safe driving practices and minimize accidents on the roads, thereby directly influencing traffic management and public safety.

The other options focus on aspects that fall under different legislative frameworks or areas of focus, such as insurance premium rates, which relate to the financial aspects of insurance; insurance fraud prevention, which addresses issues within the insurance industry; and environmental safety regulations, which pertain to laws governing environmental protections. Each of these areas is important, but they are not the primary focus of the Highway Traffic Act.