This updated report is also available with tracked changes.

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).

Proposals pursuant to the discussions during the 43rd EV Subgroup session.

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

Overview pursuant to outcomes of the 43rd subgroup session.

Draft text pursuant to discussions during the 43rd subgroup session

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

Proposal 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.

Web conference held on 11 May 2020.

Draft text with OICA comments.

Overview pursuant to the 42nd EV Subgroup session.

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

Updated slides pursuant to the 42nd EV subgroup session.

Excludes “family-related” topics.

Withdrawal of EPPR chair’s proposal for an alternative method to Japan’s OBD2CG-18-01 on OBD2 Catalyst Monitoring.

Draft text concerning items 6, 8, 9, 10, 27, 29, 34, 35, 36, and 38 with including stakeholder feedback.

OBD 2 amendment draft superseding GRPE/2020/17 submitted to the 81st GRPE session.