New York Emergency Vehicle Light Laws: The One-Light Rule & the 2024 Green Light Change

Key Takeaways

• New York Vehicle and Traffic Law § 375(41) authorizes one blue light on the personal vehicle of a volunteer firefighter and one green light on the personal vehicle of a volunteer ambulance service member. Both provisions are written in the singular.

• Bills to permit New York volunteers more than one warning light have been introduced repeatedly and have not been enacted, including S7414 in 2017, S164 and S7048 in 2019, S4523 in 2023 and S214 in 2025.

• Chapter 71 of the Laws of 2024, effective June 5, 2024, amended VTL § 375(41)(5) to permit members of deployed mobile crisis teams in New York to display a green light when engaged in an emergency operation, with written authorization from the team director.

• Blue lights on New York fire apparatus are authorized for rear projection only, under Chapter 465 of the Laws of 2010. Forward-facing blue on fire vehicles is not authorized by that amendment.

•  A New York volunteer firefighter displaying a blue light under VTL § 375(41)(4) may not use a siren or any other audible signaling device.

• New York volunteer blue and green lights require written authorization from the chief of the fire department or the chief officer of the ambulance service, and may be displayed only during an emergency operation.

New York consolidates colored and flashing light rules into a single subdivision, Vehicle and Traffic Law § 375(41). It opens from a position of prohibition: no light other than a white light, and no revolving, rotating, flashing, oscillating or constantly moving white light, may be affixed to or displayed on a vehicle except as the subdivision allows.

Two things about New York are worth knowing before you buy equipment. First, the volunteer authorization is written in the singular, and the legislature has repeatedly declined to change that. Second, the green light provision was expanded in 2024 in a way almost no published guide reflects.

The One-Light Rule for Volunteer POVs

Paragraph 4 of subdivision 41 authorizes one blue light on a motor vehicle owned by a volunteer member of a fire department, or on a vehicle owned by a family member residing in the same household, or by a business enterprise in which the member has a proprietary interest or by which the member is employed. Paragraph 5 uses parallel language for one green light for members of a volunteer ambulance service.

The word is one. Bills to change it to "one or more" have been introduced repeatedly and have not been enacted. S7414 in the 2017 session, S164 in 2019, S7048 in 2019, S4523 in 2023, and S214 in 2025 all proposed allowing volunteers additional lights. As of this review, the singular language stands.

This is the single most misunderstood point in New York emergency lighting, and it is the reason a lot of POV builds in the state do not match the statute. If you are outfitting a New York volunteer POV and want to stay strictly within VTL 375(41), that means one light, not a lightbar.

Authorization & Conditions On Volunteer Lights

A blue light requires written authorization from the chief of the fire department or company, and the authorization may be revoked. The light may be displayed exclusively by the volunteer firefighter, and only when engaged in an emergency operation.

The statute is explicit that use of blue lights on vehicles is restricted to volunteer firefighters, subject to the narrow exceptions elsewhere in the paragraph. Drivers displaying a blue light under this paragraph may not use a siren or other audible signaling device.

Green lights under paragraph 5 follow the same structure: written authorization from the chief officer of the volunteer ambulance service as designated by its members, display only during an emergency operation, and restriction to members of that service.

New For 2024: Green Lights For Mobile Crisis Teams

Chapter 71 of the Laws of 2024, effective June 5, 2024, amended paragraph 5 of subdivision 41 to permit members of deployed mobile crisis teams to display a green light when engaged in an emergency operation.

To affix the light, a mobile crisis team member must receive written authorization from the team's director or a person in a similar role, and teams are to be provided with training materials on lawful operation of a vehicle displaying a green light under that paragraph. The New York DMV enforcement bulletin circulated to all enforcement agencies and magistrates documents the change.

This is a genuinely new user class for warning lights in New York, and it is the kind of provision that will not appear in most competing state law pages for some time.

Blue on Fire Vehicles: Rear Projection Only

Chapter 465 of the Laws of 2010, effective August 30, 2010, amended paragraph 4 to authorize blue lights on fire vehicles. In addition to red and white, a fire vehicle may display one or more blue lights, a combination of blue and red, or a combination of blue, red, and white, provided the blue lights are used for rear projection only, and only when engaged in emergency operation.

Rear projection only is the operative constraint. Forward-facing blue on New York fire apparatus is not authorized by that amendment. This distinction matters when specifying a full-size lightbar for a New York department, because the color layout has to be planned around it.

Color By Class in New York

Equipment Notes for New York Builds

Given the one-light language, New York volunteer POV builds tend toward a single high output unit rather than a distributed system. A single dash or window mount light is the most defensible configuration, and our green and purple LED range covers volunteer ambulance and mobile crisis team members now authorized under paragraph 5.

Departments specifying apparatus should plan the blue rear projection requirement into the bar layout from the start. We stock Whelen, Feniex and SoundOff Signal bars that can be configured accordingly, and controllers and switches that let you separate the rear blue circuit.

Amber users across tow, utility and municipal fleets should start with amber lights and traffic advisor arrow sticks.

Frequently Asked Questions

How many blue lights can a volunteer firefighter have in New York?

VTL 375(41)(4) is written in the singular: one blue light. Multiple bills to change this to one or more lights have been introduced since at least 2017, and none have been enacted as of this review.

Can New York volunteer firefighters use a siren with a blue light?

No. Drivers of vehicles displaying a blue light under VTL 375(41)(4) may not use a siren or other audible signaling device.

Who can use a green light in New York?

Members of a volunteer ambulance service with written authorization from the chief officer of the service, and, since Chapter 71 of the Laws of 2024 took effect on June 5, 2024, members of deployed mobile crisis teams with written authorization from the team director.

Can New York fire trucks have blue lights?

Yes, for rear projection only. Chapter 465 of the Laws of 2010 authorized blue, combination blue and red, or combination blue, red and white on fire vehicles, provided the blue is used for rear projection and only during emergency operation.

Last updated and disclaimer

Last reviewed: August 2026. This page summarizes NY Vehicle and Traffic Law § 375(41) and related provisions for general informational purposes. It is not legal advice. Statutes are amended and agency requirements change. Confirm current requirements with the official sources linked above, your department or agency, and the relevant state motor vehicle authority before purchasing or installing warning equipment.