New National Standard Eases Size Limits for Intelligent Vehicle Protrusions, Effective 2027

【National Standard for Vehicle Exterior Dimensions Released, Relaxing Size Limits on Local Protrusions for Intelligent Vehicles】

Recently, the State Administration for Market Regulation (National Standardization Administration) approved and released the mandatory national standard "Limits of Dimensions, Axle Loads, and Masses for Motor Vehicles, Trailers, and Combination Vehicles" (GB 1589—2026), which will take effect on July 1, 2027.In terms of intelligent vehicle adaptations, the standard relaxes size limits on local protrusions such as radar and camera units, accommodating the operational requirements of blind-spot monitoring, autonomous driving environmental perception, and other related functions.With respect to intelligent connected vehicle technology compatibility, the new standard introduces exemption rules for exterior dimension protrusions of perception and communication components, including radar, cameras, and V2X antennas. It relaxes restrictions on local protrusion sizes to meet the demands of blind-spot monitoring, autonomous driving environmental perception, vehicle-to-everything (V2X) coordination, and beyond-line-of-sight safety communications.Regarding the axle load distribution rationality for new-energy commercial vehicles, the maximum allowable axle load limit for a single axle with single tires on each side has been raised from 7,000 kg to 8,000 kg.