WP.29/2026/144
UN R24: Proposal for a Supplement 12 to the 03 series of amendments

Proposal to amend UN R83 specifications for emission testing:

  • Amend para. 1.1.1., Footnote 1, to update the reference to the Consolidated Resolution on the Construction of Vehicles (R.E.3.) document ECE/TRANS/WP.29/78/Rev.8
  • Amend para. 24.3.1. to specify that emission of visible pollutants shall be measured by two methods in Annexes 4 and 5, with special procedures for hybrid electric vehicles or vehicles equipped with an ADS detailed in the service manual
  • Amend Annex 5, para. 2.4. to require the gear be in neutral and the drive between engine and gear-box engaged when the test is carried out on a vehicle
  • Amend Annex 5, para. 2.5. to detail engine speed demand procedures during testing

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