Regional Authorities and Special Districts - As enacted, authorizes the Megasite Authority of West Tennessee and certain law enforcement agencies to enter into a written agreement authorizing sworn peace officers of the law enforcement agency to enforce certain traffic laws on one or more designated private megasite roadways identified in the agreement. - Amends TCA Title 54 and Title 64, Chapter 9.

SB 1772 allows the Megasite Authority of West Tennessee and local law enforcement agencies to create written agreements enabling sworn officers to enforce traffic laws on designated private roads within the West Tennessee Megasite. These agreements require property owners to install standard traffic signs and markings, post clear notices about enforcement, and describe the roads precisely. The bill clarifies that enforcing traffic laws on these roads does not make them public highways, transfer ownership, or change maintenance responsibilities. It directly affects the Megasite Authority, local police departments, and property owners managing private roads within the designated megasite area.