Massachusetts General Laws
Chapter 89 - Law of the Road
Section 7c - Lane Change Upon Approaching a Stationary Emergency Response Vehicle, Highway Maintenance Vehicle or Recovery Vehicle; Penalty

Section 7C. (a) As used in this section the following words shall, unless the context clearly requires otherwise, have the following meanings:
''Emergency response vehicle'', a fire apparatus, police vehicle, ambulance, or disaster vehicle.
''Highway maintenance vehicle'', a vehicle used for the maintenance of highways and roadways: (1) that is owned or operated by the executive office of transportation and public works, a county, a municipality or any political subdivision thereof; or (2) that is owned or operated by a person under contract with the executive office of transportation and public works, a county, a municipality or any political subdivision thereof.
''Operator'', any person who operates a motor vehicle as defined in section 1 of chapter 90.
''Person'', a natural person, corporation, association, partnership or other legal entity.
''Recovery vehicle'', a vehicle that is specifically designed to assist a disabled vehicle or to tow a disabled vehicle.
(b) Upon approaching a stationary emergency vehicle, highway maintenance vehicle or recovery vehicle with flashing lights an operator shall:
(1) proceed with due caution, reduce the speed of the vehicle to that of a reasonable and safe speed for road conditions, and, if practicable and on a highway having at least 4 lanes with not less than 2 lanes proceeding in the same direction as the operator's vehicle, yield the right-of-way by making a lane change into a lane not adjacent to that of the emergency response vehicle, highway maintenance vehicle or recovery vehicle; or
(2) if changing lanes is impracticable, proceed with due caution and reduce the speed of the vehicle to that of a reasonable and safe speed for road conditions.
(c) Violation of this section shall be punished by a fine of not more than $100.

Structure Massachusetts General Laws

Massachusetts General Laws

Part I - Administration of the Government

Title XIV - Public Ways and Works

Chapter 89 - Law of the Road

Section 1 - Meeting Vehicles

Section 2 - Passing Vehicle Traveling in Same Direction

Section 3 - Sleigh or Sled; Bells

Section 4 - Keeping to Right While View Obstructed

Section 4a - Driving Vehicles in a Single Lane; Motorcycles, Riding and Passing

Section 4b - Driving in Lane Nearest Right Side of Way

Section 4c - Heavy Trucks; Driving in Right-Hand Lane on Multi-Lane Highways

Section 4d - Standing or Parking of Motor Vehicle in a Designated Bike Lane

Section 5 - Penalty; Exceptions

Section 6 - Applicability of Rules of Road to Street Railway Cars

Section 6a - Stopping of Street Railway Cars for Passage of Fire Apparatus

Section 7 - Right of Way of Fire Engines, Patrol Vehicles and Ambulances; Obstruction; Penalties

Section 7a - Restrictions on Use of Ways Upon Approach of Emergency Vehicles

Section 7b - Operation of Emergency Vehicles

Section 7c - Lane Change Upon Approaching a Stationary Emergency Response Vehicle, Highway Maintenance Vehicle or Recovery Vehicle; Penalty

Section 7d - Moving of Vehicle Involved in a Crash From a Travel Lane

Section 8 - Right-of-Way at Intersecting Ways; Turning on Red Signals

Section 9 - Designation of Highways as Through Ways; Traffic Control Signs and Devices

Section 10 - Violation of One-Way Traffic; Civil Liability

Section 11 - Marked Crosswalks; Yielding Right of Way to Pedestrians; Penalty

Section 12 - Surcharge on Fines for Motor Vehicle Violation