
EN 301 549 V4.1.1 was adopted on 24 August 2026 and published on 2 September 2026. Presumption of conformity will only apply after citation in the Official Journal of the EU, expected around 30 November 2026. Until then, V3.2.1 remains the reference. National standards must adopt the new version by 31 May 2027 and withdraw conflicting standards by 31 May 2028.
EN 301 549