Massachusetts
| Red |
Fire & Medical Vehicles, including personally owned vehicles of fire and rescue squad members School Buses Law Enforcement (rear of vehicle only) |
| Blue |
Law Enforcement Fire & Medical Vehicles (rear of vehicle only) |
Notes
Massachusetts does not define use of amber lights.
Links
Chapter 90: Section 7E. Display of red or blue lights on vehicles; permits; revocation; violations
General Laws of Massachusetts