Home » Government Regulations

FMVSS / CMVSS

The Federal Motor Vehicle Safety Standards (FMVSS) establish the baseline automotive lighting standards and regulations in the United States. These requirements define photometric performance, durability, and color for headlamps, signal lamps, and other lighting devices. For official documentation, refer to the NHTSA FMVSS database, which lists all active and historical lighting-related standards.

Standard

Title

Test Types

Devices Covered

FMVSS 108 (49 CFR 571.108) Lamps, Reflective Devices, and Associated Equipment Photometry – Luminous Intensity, Reflex, License Plate Lamps, Color, Luminous Flux
Flashers, Environmental Simulation, Mechanical Durability + more
Headlamps, Turn Signal Lamps, Taillamps, Stop Lamps, Sidemarker Lamps, Clearance Lamps, Backup Lamps, License Plate Lamps, Parking Lamps, High-Mounted Stop Lamps, Daytime Running Lamps, School Bus Signal Lamps, Emergency Warning Lamps, Reflex Reflectors, Retroreflective Sheeting
FMVSS 111 (49 CFR 571.111) Rear Visibility Mirrors – Reflectivity, Radius of Curvature
Mechanical Durability, Environmental Simulation
Interior & Exterior Mirrors
FMVSS 125 (49 CFR 571.125) Warning Devices Photometry – Reflex, Color
Environmental Simulation
Warning Triangles
FMVSS 131 (49 CFR 571.131) School Bus Pedestrian Safety Devices. Photometry – Luminous Intensity, Reflex, Flash Energy, Color
Mechanical Durability, Environmental Simulation
Interior Mirrors, Exterior Mirrors, Convex Mirrors
FMVSS Part 564 (49 CFR 564) Replaceable Light Source and Sealed Beam Headlamp Information Photometry – Luminous Flux
Filament Position, Environmental Simulation, Mechanical Durability
replaceable light sources used for headlamps
CMVSS 108 / 108.1 Canadian Equivalent to FMVSS 108 Photometry – Luminous Intensity, Reflex, License Plate Lamps, Color, Luminous Flux
Flashers, Environmental Simulation, Mechanical Durability + more
Headlamps, Turn Signal Lamps, Taillamps, Stop Lamps, Sidemarker Lamps, Clearance Lamps, Backup Lamps, License Plate Lamps, Parking Lamps, High-Mounted Stop Lamps, Daytime Running Lamps, School Bus Signal Lamps, Emergency Warning Lamps, Reflex Reflectors, Retroreflective Sheeting
CMVSS 1201 Snowmobile Lamps, Reflective Devices, and Associated Equipment Photometry – Luminous Intensity, Reflex, Color Headlamps, Stop/Tail Lamps, Turn Signal Lamps, Reflex Reflectors
CMVSS 131 Canadian Equivalent to FMVSS 131 Photometry – Luminous Intensity, Reflex, Flash Energy, Color Mechanical Durability, Environmental Exposure Headlamps, Stop/Tail Lamps, Turn Signal Lamps, Glass and Reflective Surfaces

SAE

The Society of Automotive Engineers (SAE) develops detailed technical specifications that complement global automotive lighting standards and regulations. These standards define laboratory procedures, measurement geometry, and equipment calibration for photometric and environmental testing. To access current and historical documents, visit the SAE International Standards Catalog.

Photometric and Test Method Standards

Standard

Title

Test Types

Devices Covered

SAE J292Snowmobile and Snowmobile Cutter Lamps, Reflective Devices and Associated EquipmentPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationLamps, Reflex Reflectors, etc.
SAE J575Test Methods and Equipment for Lighting Devices for Use on Vehicles Less than 2032 mm in Overall WidthPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationAll Vehicle Lamps
SAE J577Vibration Test Machine and Operation ProcedureVibration, ShockVehicle Lamps
SAE J578(R) Chromaticity Requirements for Ground Vehicle Lamps and Lighting EquipmentColorimteryAll Lamps and Reflectors
SAE J1889LED Signal and Marking Lighting DevicesPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationLED Signal and Marking Lighting Devices
SAE J2650Performance Requirements for Road Illumination Devices Using Light Emitting Diode (LED) SourcesPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationLED Road Illumination Devices

Performance and Application Standards

Standard

Title

Test Types

Devices Covered

SAE J131Motorcycle Turn Signal LampPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationMotorcycle Turn Signals
SAE J222Parking Lamp (Front Position Lamp)Photometry, Colorimetry, Mechanical Durability, Environmental SimulationParking Lamp (Front Position Lamp)
SAE J278Snowmobile Stop LampPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationSnowmobile Stop Lamp
SAE J279Snowmobile Tail (Rear Position) LampPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationSnowmobile Tail Lamps
SAE J280Snowmobile HeadlampsPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationSnowmobile Headlamps
SAE J581Auxiliary High Beam LampsPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationAuxiliary High Beam Lamps
SAE J582Auxiliary Low Beam LampsPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationAuxiliary Low Beam Lamps
SAE J583(R) Front Fog LampPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationFront Fog Lamps
SAE J584(R) Motorcycle HeadlampsPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationMotorcycle Headlamps
SAE J585Tail Lamp (Rear Position Lamp) for Use on Motor Vehicles <, =, or > 2032 mm in Overall WidthPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationTail Lamp (Rear Position Lamp)
SAE J586Stop Lamp for Use on Motor Vehicles Less than, Equal to, or Greater than 2032 mm in Overall WidthPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationStop Lamps
SAE J587License Plate Illumination Devices (Rear Registration Plate Illumination Devices)Photometry, Colorimetry, Mechanical Durability, Environmental SimulationLicense (Registration) Plate
SAE J588Turn Signal Lamps for Use on Motor Vehicles Less than 2032 mm in Overall WidthPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationTurn Signal Lamps
SAE J591Spot LampsPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationSpot Lamps
SAE J592Sidemarker Lamps for Use on Road Vehicles Less than 2032 mm in Overall WidthPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationSidemarker Lamps
SAE J593Backup Lamp (Reversing Lamp)Photometry, Colorimetry, Mechanical Durability, Environmental SimulationBackup Lamp (Reversing Lamp)
SAE J594Reflex ReflectorsPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationReflex Reflectors
SAE J595Directional Flashing Optical Warning Devices for Authorized Emergency, Maintenance, and Service VehiclesPhotometry – Flash Energy
Environmental Simulation
Directional Flashing Optical Warning Devices
SAE J845Optical Warning Devices for Authorized Emergency, Maintenance, and Service VehiclesPhotometry – Flash Energy
Environmental Simulation
Omnidirectional and Selective Coverage Optical Warning Devices
SAE J852Front Cornering Lamps for Use on Motor VehiclesPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationFront Cornering Lamps
SAE J887School Bus Warning LampPhotometry – Flash Energy
Environmental Simulation
School Bus Warning Lamps
SAE J914Side Turn Signal Lamps for Vehicles Less than 12 m in LengthPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationSide Turn Signal Lamps
SAE J1133School Bus Stop Arm LampPhotometry – Flash EnergySchool Bus Stop Arm Lamp
SAE J1306(R) Motorcycle Auxiliary Front LampsPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationMotorcycle Auxiliary Front Lamps
SAE J1319Rear Fog Lamp SystemPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationRear Fog Lamp Systems
SAE J1373Rear Cornering Lamps for Use on Motor Vehicles Less than 9.1 m in Overall LengthPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationRear Cornering Lamps
SAE J1383Performance Requirements for Motor Vehicle HeadlampsPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationHeadlamps
SAE J1424Cargo Lamps for Use on Vehicles Under 5443 kg (12 000 lb) GVWRPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationCargo Lamps
SAE J1432Rear High Mounted Stop Lamps and Rear High Mounted Turn Signal Lamps for Use on Vehicles 2032 mm or More in Overall WidthPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationRear High Mounted Stop and Signal Lamps
SAE J1623(R) Off-Highway Vehicle HeadlampsPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationOff-Highway Vehicle Headlamps
SAE J1735Harmonized Vehicle Headlamp Performance RequirementsPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationHarmonized Low and High Beam Headlamps
SAE J1957Center High Mounted Stop Lamp Standard for Vehicles Less than 2032 mm Overall WidthPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationCenter High Mounted Stop Lamp
SAE J1967Retroreflective Materials for Vehicle ConspicuityPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationRetroreflective Sheeting
SAE J2039Side Turn Signal Lamp for Long VehiclesPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationSide Turn Signal Lamp
SAE J2041Reflex Reflectors for Use on Vehicles 2032 mm or More in Overall WidthPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationReflex Reflectors
SAE J2042Clearance, Sidemarker, and Identification Lamps for On-Road Vehicles 2032 mm or More in Overall WidthPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationClearance Lamps, Sidemarker Lamps, Identification Lamps
SAE J2087Daytime Running LampPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationDaytime Running Lamp
SAE J2139Tests for Signal and Marking Devices Used on Vehicles 2032 mm or More in Overall WidthPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationSignal Lamps, Marking Devices
SAE J2261Stop Lamps and Front- and Rear-Turn Signal Lamps for Use on Motor Vehicles 2032 mm or More in Overall WidthPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationStop Lamps, Front Turn Signal Lamps, Rear Turn Signal Lamps
SAE J2560Halogen Light Source Performance Requirements for Motor Vehicle Forward LightingPhotometry
Filament Position
Halogen Replaceable Light Sources
SAE J2595Performance Requirements for Sealed Beam Motor Vehicle Headlamps (STABILIZED Sep 2015)Photometry, Colorimetry, Mechanical Durability, Environmental SimulationSealed Beam Headlamps

Superseded or Historical Standards

Standard

Title

Test Types

Devices Covered

SAE J1395 (superseded by J588)Front and Rear Turn Signal Lamps for Use on Motor Vehicles 2032 mm or More in Overall WidthPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationSignal Lamps
SAE J1398 (superseded by J586)Stop Lamps For Use on Motor Vehicles 2032mm or More in Overall WidthPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationStop Lamps
SAE J2040 (superseded by J585)Tail Lamps (Rear Position Lamps) for Use on Vehicles 2032 mm or More in Overall WidthPhotometry, Colorimetry, Mechanical Durability, Environmental SimulationTail Lamps

UN Regulations (UNECE)

The United Nations Economic Commission for Europe (UNECE) maintains harmonized automotive lighting standards and regulations known as ECE Regulations. These standards focus on international uniformity for lighting performance, aiming to simplify cross-border compliance and trade. For complete documentation, consult the UNECE Vehicle Regulations Portal.

Standard

Title

Test Types

Devices Covered

UNECE R1 (superseded by R112) Headlamps (including R2 and/or HS1 lamps) Photometry, Colorimetry Headlamps
UNECE R2 (superseded by R37) Headlamp Bulb Approval Vehicle Lamps
UNECE R3 (superseded by R150) Retro-reflecting devices Photometry, Colorimetry, Physical & Environmental Tests Retroreflectors
UNECE R4 (superseded by R148) Illumination of rear registration plates Photometry, Colorimetry ID/Registration Plate Lamps (License Plate Lamps)
UNECE R5 (superseded by R112) Sealed Beam headlamps Photometry, Colorimetry Sealed Beam (SB) Headlamps
UNECE R6 (superseded by R148) Direction indicators (Turn Signals) Photometry, Colorimetry Direction Indicator (Turn Signal) Lamps
UNECE R7 (superseded by R148) Position, stop and end-outline lamps Photometry, Colorimetry Position Lamps, Tail Lamps, Stop Lamps
UNECE R8 (superseded by R112) Headlamps (H1, H2, H3. HB3, HB4, H7, H8, H9, HIR1 and/or HIR21) Photometry, Colorimetry Halogen Filament Headlamps
UNECE R19 (superseded by R149) Front Fog Lamps Photometry, Colorimetry Front Fog Lamps
UNECE R20 (superseded by R112) Headlamps (H4) Photometry, Colorimetry Headlamps (Halogen Filament)
UNECE R23 (superseded by R148) Reversing Lamps Photometry, Colorimetry Backup Lamps and Maneuvering Lamps
UNECE R27 (superseded by R150) Advance warning triangles Photometry, Colorimetry, Mechanical Tests, Environmental Tests Warning Triangles
UNECE R31 (superseded by R148) Headlamps (halogen sealed beam (HSB)) Photometry, Colorimetry, Mechanical Tests, Environmental Tests Headlamps (Halogen Sealed Beam)
UNECE R37 (superseded by R5) Filament light sources Vehicle Lamps
UNECE R38 (superseded by R148) Rear fog lamps Photometry, Colorimetry, Physical Tests Rear Fog Lamps
UNECE R48 Installation of lighting and light-signalling devices lighting and light-signalling devices
UNECE R50 (superseded by R148) Position, stop, direction indicators lamps for mopeds and motorcycles Photometry, Colorimetry Position Lamps, Stop Lamps, Indicator Lamps (Turn Signal), Registration/License Plate Lamps
UNECE R53 Installation of lighting and light-signalling devices for L3 vehicles Photometry, Colorimetry lighting and light-signalling devices (motorcycles)
UNECE R65 Special warning lamps Photometry, Colorimetry, Physical Tests, Environmental Tests Warning Lamps emitting Blue or Amber Lights Intermittently
UNECE R69 (superseded by R150) Rear marking plates for slow-moving vehicles Photometry, Colorimetry Retroreflective Rear Marking Plate
UNECE R70 (superseded by R150) Rear marking plates for heavy and long vehicles Photometry, Colorimetry Retroreflective Rear Marking Plate
UNECE R72 (superseded by R112) Headlamps (HS1 lamps) (motorcycles) Photometry, Colorimetry Headlamps (motorcycles)
UNECE R74 Installation of lighting and light-signalling devices (L1 Vehicles) Photometry, Colorimetry Motorcycle Lamps
UNECE R76 Headlamps for mopeds Photometry, Colorimetry Headlamps
UNECE R77 (superseded by R148) Parking lamps Photometry, Colorimetry Parking lamps
UNECE R82 Headlamps (HS2) (moped) Photometry, Colorimetry Headlamps
UNECE R86 Installation of lighting and light-signalling devices for agricultural tractors lighting and light-signalling devices (agricultural tractors)
UNECE R87 (superseded by R148) Daytime running lamps Photometry, Colorimetry, Physical Tests, Environmental Tests Daytime Running Lamps (DRL’s)
UNECE R88 Retroreflective tyres for two-wheeled vehicles Photometry, Colorimetry, Retroreflective tires
UNECE R91 (superseded by R148) Side-marker lamps Photometry, Colorimetry, Physical Tests, Environmental Tests Side-marker lamps
UNECE R98 (superseded by R149) Headlamps with gas-discharge light sources Photometry, Colorimetry, Physical Tests, Environmental Tests Headlamps
UNECE R99 (superseded by R5) Gas-discharge light sources Photometry, Colorimetry Gas-discharge light sources
UNECE R104 (superseded by R150) Retro-reflective markings Photometry, Colorimetry Retro-reflective markings
UNECE R112 (superseded by R149) Headlamps emitting an asymmetrical passing-beam Photometry, Colorimetry, Physical Tests, Environmental Tests Headlamps
UNECE R113 (superseded by R149) Headlamps emitting a symmetrical passing-beam Photometry, Colorimetry, Physical Tests, Environmental Tests Headlamps
UNECE R119 (superseded by R149) Cornering Lamps Photometry, Colorimetry, Physical Tests, Environmental Tests Cornering Lamps
UNECE R123 (superseded by R149) Adaptive front-lighting systems (AFS) Photometry, Colorimetry, Physical Tests, Environmental Tests Headlamps
UNECE R128 (superseded by R5) Light Emitting Diode (LED) light sources Photometry, Colorimetry LED Light Sources
UNECE R148 Light Signalling Devices (LSD) Photometry, Colorimetry (Turn) Signal Lamps
UNECE R149 Road Illumination Devices (RID) Photometry, Colorimetry, Physical Tests, Environmental Tests Headlamps
UNECE R150 Retro-Reflective Devices (RRD) Photometry, Colorimetry, Physical Tests, Environmental Tests Retroreflective Devices

CIE

The International Commission on Illumination (CIE) focuses on the science of light and color, providing measurement and testing frameworks that underpin most automotive lighting standards and regulations. Their technical reports define photometry, colorimetry, and visibility models critical to accurate lighting evaluation. Explore official publications at the CIE International Commission on Illumination site.

Standard

Title

Test Types

Devices Covered

CIE 13.3Method of Measuring and Specifying Colour Rendering of Light Sources (1995)Photometry – ColorVehicle lamps, LED modules, Traffic signals
CIE 15Colorimetry, 4th Edition (2018)Photometry – ColorVehicle lamps and LED’s, Signal Lights, Retroreflectors, Safety Garments
CIE 54.2Retroreflection: Definition & Measurement (2001)Photometry – ReflexRetroreflective Sheeting, License Plates, Pavement Markers, Safety Garments, Reflectors
CIE 70The Measurement of Absolute Luminous Intensity Distributions (1987)Photometry – Luminous IntensityN/A (Calibration Standard)
CIE 84Measurement of Luminous Flux (1989)Photometry – Luminous FluxLamps and LED’s (Headlamps, Signal Lamps, DRL, Fog, etc.)

ASTM

Advancing Standards Transforming Markets International (ASTM) contributes to automotive lighting standards and regulations by developing laboratory and material testing methods used across industries. These standards ensure consistent testing of plastics, coatings, and optical components in lighting assemblies. Detailed standard descriptions may be viewed and/or purchased at ASTM Standards Database by looking up the specific standard in the search bar.

Standard

Title

Test Types

Devices Covered

ASTM D4280 Extended Life Type, Nonplowable, Raised Retroreflective Pavement Markers Photometry – Reflex, Color; Mechanical Durability, Environmental Simulation Pavement Markers
ASTM D4383 Plowable, Raised Retroreflective Pavement Markers Photometry – Reflex, Color; Mechanical Durability, Environmental Simulation Pavement Markers
ASTM D4956 Retroreflective Sheeting for Traffic Control Photometry – Reflex, Color; Mechanical Durability – Adhesion, Liner Removal, Shrinkage, Flexibility, Impact Resistance Retroreflective Sheeting (Traffic Control Signs, delineators, barricades, etc.)
ASTM E808 Standard Practice for Describing Retroreflection Photometry – Reflex Retroreflectors, Retroreflective Sheeting
ASTM E809 Standard Practice for Measuring Photometric Characteristics of Retroreflectors Photometry – Reflex Retroreflectors, Retroreflective Sheeting
ASTM E810 Standard Test Method for Coefficient of Retroreflection of Retroreflective Sheeting Utilizing the Coplanar Geometry Photometry – Reflex Retroreflectors, Retroreflective Sheeting
ASTM E308 Standard Practice for Computing the Colors of Objects by Using the CIE System Photometry – Color All Devices
ASTM E811 Standard Practice for Measuring Colorimetric Characteristics of Retroreflectors Under Nighttime Conditions Photometry – Color
ASTM B117 Standard Practice for Operating Salt Spray (Fog) Apparatus Salt Spray (Fog)

ISO

The International Organization for Standardization (ISO) provides a globally recognized framework that aligns with national and regional automotive lighting standards and regulations. They cover terminology, testing consistency, and interoperability between markets. For additional reference, review the ISO Technical Committee 22/SC 35 – Lighting and Signalling listings, or search for a standard with their search bar.

Standard

Title

Test Types

Devices Covered

ISO 7591 Road vehicles — Retro-reflective registration plates for motor vehicles and trailers — Specification Photometry – Reflex, Color; Temperature Resistance, Adhesion, Impact Resistance, Bending Resistance, Water Resistance, Cleanability, Fuel Resistance, Saline Mist Resistance License (Registration) Plates
ISO 20471 High visibility clothing — Test methods and requirements Photometry – Reflex High visibility clothing

ANSI

The American National Standards Institute (ANSI) coordinates the development of U.S. consensus-based automotive lighting standards and regulations. While ANSI itself does not author standards, it accredits organizations like SAE and IES that develop lighting performance and safety requirements. Learn more at the ANSI Official Website.

Standard

Title

Test Types

Devices Covered

ANSI 107 American National Standard for High-Visibility Safety Apparel Photometry – Reflex, Color; Reflective Trim Conditioning – Flexing, Folding, Temperature Variation, Rainfall; Garment Area High-visibility Safety Garments
CSAZ96 (Canadian Equivalent to ANSI 107) Photometry – Reflex, Color; Reflective Trim Conditioning – Flexing, Folding, Temperature Variation, Rainfall; Garment Area High-visibility Safety Garments

NFPA

The National Fire Protection Association (NFPA) includes lighting-related provisions in its codes addressing emergency vehicles and roadway safety. These guidelines supplement automotive lighting standards and regulations with emphasis on visibility, emergency signaling, and hazard lighting. Additional resources are available from the NFPA Codes and Standards Portal.

Standard

Title

Test Types

Devices Covered

NFPA 1971 Standard on Protective Ensembles for Structural Fire Fighting and Proximity Fire Fighting Photometry – Reflex, Color; Environmental Simulation – Temperature (-70 to 150) °C (Heat Exposure – Trim) Coats, Trousers, Coveralls, Helmets, Gloves, Footwear, and Interface Components
NFPA 1977 Standard on Protective Clothing and Equipment for Wildland Fire Fighting and Urban Interface Fire Fighting Photometry – Color, Reflex Wildland Firefighter / Wildland Urban Interface Firefighter Garments

CPSC / Other US Regulations

The Consumer Product Safety Commission (CPSC) oversees a wide range of regulations relating to safety. CalCoast-ITL specifically tests requirements for bicycle reflectors. Reference material can be found at the CPSC Regulations and Standards Page.

Standard

Title

Test Types

Devices Covered

CPSC 1512.16 / 1512.18 Requirements for [bicycle] reflectors; Tests and Test Procedures. Photometry – Reflex, Color; Bicycle Reflector Conditioning – Warpage, Lens Impact, Moisture Bicycle Reflectors

ITE

The Institute of Transportation Engineers (ITE) publishes technical reports and specifications related to signal systems and roadway lighting that align with broader automotive lighting standards and regulations. These documents define performance and design criteria for traffic control and vehicle detection lighting. Visit the ITE Technical Resources Portal for details.

Standard

Title

Test Types

Devices Covered

ITE ST-017 Chapter 13 Traffic Controls for Street & Highway Construtcion, Maintenance, Utility, & Emergency Operations – Flashing and Steady Burn Warning Lights Photometry – Luminous Intensity, Reflex, Flash Energy LED Traffic Signals

AASHTO / Government Specs

The American Association of State Highway and Transportation Officials (AASHTO) develops and maintains government specifications relevant to roadway and infrastructure lighting, ensuring consistency with federal automotive lighting standards and regulations. These standards govern illumination levels, photometric measurements, and construction requirements for public road systems. Access official specifications at the AASHTO Publications Catalog.

Standard

Title

Test Types

Devices Covered

AASHTO M268 Retroreflective Sheeting for Flat and Vertical Traffic Control Applications Photometry – Reflex Retroreflective Sheeting
GSA/FED K3-A-1822F Section 3.8 Federal Specification for the Star-of-Life Ambulance Photometry – Flash Energy Emergency Vehicle Lighting System