Section 7E of chapter 90 of the General Laws, as appearing in the 2022 Official Edition, is hereby amended by striking out the second paragraph in its entirety and replacing it with the following:-

A vehicle owned or operated by a forest warden, deputy forest warden, a chief or deputy chief of a municipal fire department, a chaplain of a municipal fire department, a member of a fire department of a town or a call member of a fire department or a member or a call member of an emergency medical service or full-time employees or contract employees employed by or under contract with the department of fire services or any vehicles owned, operated, or under contract by the Department of Transportation may have mounted thereon flashing, rotating or oscillating red lights. Unless the vehicle is owned, operated, or under contract by the Department of Transportation, such lights shall only be displayed when such owner or operator is proceeding to a fire or in response to an alarm and when the official duty of such owner or operator requires him to proceed to said fire or to respond to said alarm, and at no other time.