The Santiago/Ramos/Liu Police Protection Act mandates that all new motor vehicles purchased for use by law enforcement agencies in New Jersey must have tinted windows. These vehicles, which must be clearly marked for law enforcement purposes, are required to have window tinting that allows only the minimum light transmittance as specified by federal law, rule, or regulation. This requirement applies to vehicles purchased on or after the first day of the fourth month following the bill's enactment.

The bill is named in honor of New York City police officers Rafael Ramos and Wenjian Liu, as well as Jersey City police officer Melvin Santiago, who were tragically killed in 2014. The legislation aims to enhance the safety and protection of law enforcement personnel by standardizing the window tinting of their vehicles.