SAE J3134_202512

This SAE Recommended Practice provides guidelines for the use, performance, installation, activation, and switching of marking lamps on Automated Driving System (ADS) equipped vehicles. The current SAE J3134 standard only has requirements for front Automated Driving System (ADS) marker lamps because the initial justification was to make the road user comfortable when a driver is not present. Since then, there have been requests to add rear and side marker ADS lamps requirements into SAE J3134 for the following reasons: Rear and side ADS marker lamps are being considered in the UNECE and China regulations. SAE J3134 rear and side ADS requirements would establish a recommended practice that could lead to harmonization as it did with front ADS marker lamps. Rear and side ADS marker lamps are being installed and studied on vehicle test fleets. State Law Enforcement are supportive of 360-degree visibility, e.g., front, rear, and side ADS marker lamps. California Bill - CA SB 480 – proposes: (i) Commencing January 1, 2026, an autonomous vehicle may be equipped with automated driving system (ADS) marker lamps in accordance with SAE International’s “Recommended Practice, Automated Driving System (ADS) Marker Lamp, Standard J3134 (May2019),” as may be revised… American Association of Motor Vehicle Administrators (AAMVA) has also included ADS Marker Lamps in their Guidelines for Regulating Vehicles with Autonomous Driving Systems - Chapter 6. Law Enforcement Considerations - 6.1 Vehicle Identification: Recommendations for Jurisdictions: 6.1.2. Encourage the passage of legislation…to allow Manufacturers and Other Entities (MOEs) to implement the use of ADS marking lamps for…ADS vehicles. The color should comply with SAE J3134. Recommendation for MOEs: “MOE 26. When authorized to do so, install ADS marking lamps to allow law enforcement to identify if an ADS-equipped vehicle is being operated by the ADS or by the driver to mitigate enforcement stops for driver-centric violations, such as distracted driving. Visual or other cues should be included in the law enforcement interaction plan.” In 2.2.1 (SAE Publications): Added SAE J2042 Removed SAE J2442 Added SAE J3098 In 2.2.2 (Other Publications): Added American Association of Motor Vehicle Administrations (AAMVA) - Guidelines for Regulating Vehicles with Automated Driving Systems Edition 4 In Section 3 (Definitions): 3.1 AUTOMATED DRIVING SYSTEM (ADS) - definition revised 3.2 ADS MARKER LIGHT FUNCTION - definition and title revised 3.3 ADS MARKER LAMP - new definition added In 6.1.5 (Photometry): Revised ADS marker lamp requirements: Changed front ADS marker lamp photometry points to harmonize with UN signal lamp photometry points. Combined day and nighttime requirements into one figure to simplify document. Added sections 6.1.5.2 and 6.1.5.3 and figures for rear and side ADS marker lamp requirements. In 6.2 (Visibility): Added geometric visibility requirements. In 6.3 (Color): Removed specific blue-green color coordinates and referenced SAE J578 in 6.3.1. In 6.5 (Installation): Revised Table 2 to include rear and side ADS marker lamps requirements. Allowing deactivation of ADS marker lamps either automatically (GPS) or by other means (dealer service procedure) for areas or jurisdictions where ADS marker lamps are potentially prohibited.