ISO 10604:2026 ADB Headlight Rule: What Importers Gain

One shared procedure means ADB beam testing finally speaks a common language. ISO 10604:2026, out on 27 October and revised under Chinese leadership, sets it for good. Labs in the EU can read the report without adding their own notes. That removes one round of argument at approval.

Headlamps changed faster than the test methods. Matrix LED and adaptive high beam slid from top trims to mid trims, and the beam edge is now a moving line. Old procedures were written for halogen and single beams. One lamp set left two labs with two verdicts.

Count rounds, not unit price. A second round from a mismatched procedure adds 100% of the cost and returns nothing new. Send one lamp set to 3 markets and duplicates double the test budget. Align the method and those 3 reports become one master file.

Three things shift. EU approval bodies and authorised labs can cite the standard as the measurement basis, so a rejected beam report gets rarer. Chinese suppliers get a steadier path and will list ADB more often. The limit holds: the standard says how to measure, not whether you pass.

Before signing, ask for three documents. Request the beam report produced under ISO 10604:2026 and check its darkroom conditions. Get the certificate number and issuing body for your market, since a citation is not a certificate. Add the IEC TS 62196-7:2026 declaration if a DC adapter ships with the car.

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This article is published by EZ Auto. EZ Auto (Cheyixing Automobile Import & Export) specializes in exporting Chinese vehicles — new, used and parts — serving Latin America, Central Asia & CIS, Africa, the Middle East and the EU, with order-based sourcing, inspection with photo report, export documentation and ocean freight in one place.