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)

Explanatory note from the PMP informal group addressing the proposed changes to the current methodology and the proposed changes for the second alternative option to extend the particle size detection range to 10 nm particles.

Document submitted by the Informal Working Group (IWG) for the Particle Measurement Programme to inform and update the GRPE on work to amend UN GTR 15 Annexes 5, 6, 7 to:

• Modify the existing solid PN measurement methodology having a 50% cut-off size at 23 nm (SPN23) in order to allow the use of catalyzed volatile particle remover (VPR) and introduce minor improvements,
• Include as a second option a solid PN measurement methodology with a 65% cut-off size at 10 nm (SPN10).

Draft text pursuant to discussions during the 43rd subgroup session

Proposal pursuant to discussions during the 43rd subgroup session.

Status pursuant to the outcomes of the 43rd subgroup session.

Draft text pursuant to discussions during the 43rd subgroup session.

Proposal pursuant to discussions during the 43rd subgroup session.

Draft annex pursuant to the discussions during the 43rd subgroup session.

Proposal with EC and Japan input.

Excludes “family-related” topics.

Updated slides pursuant to the 42nd EV subgroup session.

Overview pursuant to the 42nd EV Subgroup session.

Status of open issues pursuant to the 42nd EV Subgroup session.