China’s State Administration for Market Regulation (National Standardization
Administration) has approved and published the mandatory standard Limits on
Overall Dimensions, Axle Load and Mass for Motor Vehicles, Trailers and Vehicle
Combinations (GB1589—2026), which takes effect on July 1, 2027. The standard
relaxes local protrusion limits for radars, cameras and similar devices to
accommodate blind‑spot monitoring and autonomous‑driving environment perception
requirements.