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UN Regulation No. 24
C.I. Engine Emissions and Net Power

Uniform Provisions Concerning: I. The Approval of Compression Ignition (C.I.) Engines with regard to the Emission of Visible Pollutants; II. The Approval of Motor Vehicles with regard to the Installation of C.I. Engines of an Approved Type; III. The Approval of Motor Vehicles Equipped with C.I. Engines with regard to the Emission of Visible Pollutantns by the Engine; IV. The Measurement of Power of C.I. Engine

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Revisions and Amendments
Series of Amendments and Supplements

Application of the Regulation

Contracting Parties applying UN R24

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Development of the Regulation

Pending Changes to UN R24

Latest Documents

7 Jan 2020
UN R24: Proposal to amend the 03 series of amendments | GRPE-80-11
11 Nov 2019
Correlations between some UN Regulations and UN Rules | PTI-16-02
19 Apr 2019
UN R24: Proposal for Supplement 5 to the 03 series of amendments | WP.29/2019/41
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Latest Meeting Discussions

Working Party on Pollution and Energy | Session 81 | 9-12 Jun 2020
Working Party on Pollution and Energy | Session 80 | 14-17 Jan 2020
World Forum for the Harmonization of Vehicle Regulations | Session 178 | 24-28 Jun 2019
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