Authorizes municipalities to lower speed limits in historic districts without engineering and traffic investigation.

This bill allows New Jersey municipalities to set a 15 miles per hour speed limit in designated historic districts without first conducting a formal engineering and traffic investigation. Under current rules, establishing lower speed limits typically requires a detailed study to prove the change is safe, but this measure removes that requirement specifically for areas listed in the National Register of Historic Places or the New Jersey Register of Historic Places. The law defines these historic districts based on existing state and federal registries and permits towns to pass ordinances to enforce the reduced speed limit immediately upon enactment.