GAR | WP.29/2026/144

WP.29/2026/144

UN R24: Proposal for a Supplement 12 to the 03 series of amendments

Source(s)

GRPE

Date

9 Apr 2026

Status

Adopted by WP.29

Subject

Impact

03 series of amendments | Supplement 12

Meeting(s)

WP.29 | Session 199 | 22-26 Jun

Agenda item 4.11.1. Proposal for Supplement 12 to the 03 series of amendments to UN Regulation No. 24 (Visible pollutants, measurement of power of C.I. engines (Diesel smoke))

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

Downloads

UNECE server

Related documents

Excerpts from session reports

GRPE | Session 94 | 17-19 Mar

40. The co-Chair of the TF-AVRS introduced ECE/TRANS/WP.29/GRPE/2026/18, ECE/TRANS/WP.29/GRPE/2026/19, ECE/TRANS/WP.29/GRPE/2026/20 (as amended by GRPE-94-34 and during the session), ECE/TRANS/WP.29/GRPE/2026/21, ECE/TRANS/WP.29/GRPE/2026/22 and ECE/TRANS/WP.29/GRPE/2026/23 (as amended by GRPE-94-31 and GRPE-94-54).

41. GRPE adopted ECE/TRANS/WP.29/GRPE/2026/18 and requested the secretariat to submit it to WP.29 and AC.1 for consideration and vote at their June 2026 sessions as draft new supplement to the 03 series of amendments to UN Regulation No. 24 (Diesel Smoke).

42. GRPE adopted ECE/TRANS/WP.29/GRPE/2026/19 and requested the secretariat to submit it to WP.29 and AC.1 for consideration and vote at their June 2026 sessions as draft new supplement to UN Regulation No. 85 (Power Measurement of Internal Combustion Engines and Electric Motors).

43. GRPE adopted ECE/TRANS/WP.29/GRPE/2026/20, as amended by GRPE-94-34 and during the session, and requested the secretariat to submit it to WP.29 and AC.1 for consideration and vote at their June 2026 sessions as draft new supplement to UN Regulation No. 115 (Liquefied Petroleum and Compressed Natural Gas Retrofit Systems).

44. GRPE adopted ECE/TRANS/WP.29/GRPE/2026/21 and requested the secretariat to submit it to WP.29 and AC.1 for consideration and vote at their June 2026 sessions as draft new supplement to UN Regulation No. 133 (Recyclability of motor vehicles).

45. GRPE adopted ECE/TRANS/WP.29/GRPE/2026/22 and requested the secretariat to submit it to WP.29 and AC.1 for consideration and vote at their June 2026 sessions as draft new supplement to UN Regulation No. 143 (Heavy-Duty Dual Fuel Retrofit Systems).

46. GRPE adopted ECE/TRANS/WP.29/GRPE/2026/23, as amended by GRPE-94-31 and GRPE-94-54, and requested the secretariat to submit it to WP.29 and AC.1 for consideration and vote at their June 2026 sessions as draft new supplement to the 01 series of amendments of UN Regulation No. 177 (System Power).