UNR WLTP having features that have not been seen before in Regulations of the 1958 Agreement and GRPE therefore decided to commission this document to assist all users of this Regulation in their understanding. UNR WLTP will have 3 Levels. There are two regional Levels (contained within Level 1), and one harmonised Level (Level 2). The regional Levels reflect the current (at the time of adoption) emissions legislation in the EU (Level 1A) and in Japan (Level 1B). The harmonised level is the only level which will be accepted as part of an approval to Regulation 0 (International Whole Vehicle Type Approval – IWVTA)

Presentation on how to harmonize the requirements of the 06 and 07 series of amendments to UN R83, the 01 series of amendments to UN R101 and the original, 01, 02 and 03 series of amendments to UN R154 respectively, and to ensure consistent type-approval test conditions with the introduction of the 08 series of amendments to UN R48.

Informal document GRPE-81-29 rev 1 was submitted to GRPE in June 2020 to clarify some elements surrounding the introduction of UN Regulation No. 154. This paper is updated here to add an additional clarification of the introductory provisions in the newly adopted 02 series of amendments. This document with tracked changes in word format and pdf version is also available.

Proposal to correct the recursive formula of the 05, 06 and 07 series of amendments to UN R83 in the procedure for verifying the conformity of production and to align the approval certificate in 06 and 07 series of amendments with recent changes to regulation UN R24.

Proposal to update the original text of UN R154 with corrections and clarifications identified during the development of the 02 series of amendments.

Proposal to update the 01 series of amendments with corrections and clarifications identified during the development of the 02 series of amendments.

Proposal to allow measurement equipment compliant with the technical requirements of UN R154 to be used for testing under UN R83.

Proposal to introduce the possibility to switch OFF rear position lamps and other lamps when ambient light conditions outside the vehicle are above 7,000 lux in order to avoid unnecessary fuel consumption (in alignment with UN R48 wording).

Proposal to introduce the possibility to switch OFF rear position lamps and other lamps when ambient light conditions outside the vehicle are above 7,000 lux in order to avoid unnecessary fuel consumption.

Proposal to introduce the possibility to switch OFF rear position lamps and other lamps when ambient light conditions outside the vehicle are above 7,000 lux in order to avoid unnecessary fuel consumption (in alignment with UN R48 wording).

Proposal to harmonize requirements for the determination of CO2, fuel and electric energy consumption of the discharge requirement for OVC-HEV with an operating mode switch with its stop criterion. The preconditioning requirement is also harmonized between the 01 series of amendments of UN Regulation No. 101 (Annex 9, determination of electric range) and 06 and 07 series of amendments of UN Regulation No. 83 (Annex 14, provisions for emissions test procedures for HEV).

Proposal to integrate exemptions for special purpose vehicles into UN R83.

Proposal to amend definitions for special purpose vehicles.