Overview of literature related to particle emissions from tire and/or brake wear regarding importance of such particle emissions, physico-chemical characteristics, and possible health effects.

Review of current evidence concerning risks from non-exhaust vehicle emissions and open questions regarding the potential value of a regulatory response.

Status report on the work to develop standards for heavy-duty vehicle dual-fuel retrofit systems.

Spreadsheet detailing the status of issues being addressed under the heavy-duty vehicle dual-fuel retrofit systems program.

Draft of the Electric Vehicle Regulatory Reference Guide concerning worldwide environmental regulations submitted to the GRPE by the EVE informal working group chair.

Report to the GRPE on the project to standardize WP.29 terms used in reference to vehicle propulsion systems.

Revised presentation of Japanese regulatory plans and views on the working draft of a possible global technical regulation concerning on-board diagnostic systems for L-category vehicles (mopeds, motorcycles and derivatives).

Summary and conclusions from the 20 December 2013 conference call and the 8 January 2014 expert group session on the proposals for global technical regulations on evaporative emissions and OBD for motorcycles and related light vehicles.

Status report on the group’s activities to develop amendments to GTR No. 2 on motorcycle emissions and new global technical regulations concerning L-category vehicle propulsion systems. The group’s priority interests include targets include evaporative emissions and on-board diagnostics testing, followed by tests for tailpipe emissions after cold start. Other interests include tailpipe emissions test at (increased) idle / free acceleration; emission test of crankcase gases; durability testing of pollution control devices; and measurement of CO2 emissions, fuel consumption, electric energy consumption and electric range determination; procedures to measure power and torque for propulsion technologies fitted on L-category vehicles; and uniform measurement of maximum design vehicle speed and/or power for restricted L-category vehicles.

Revised recommendations by AECC, CLEPA, EUROMOT, and OICA, pursuant to discussions during the GRPE-68 session, for minimum quality attributes of market fuels (i.e. gasoline and diesel) to be introduced “in parallel, and at the same time, to complement the level of motor vehicle and non-road mobile machinery pollutant emission standards that a country or region may be considering to introduce”.

Further updated proposal for the second phase amendments to the retrofit emission control devices regulation from the REC informal working group.

Pursuant to GRPE 68th session discussions, further updated proposal for the second phase amendments to the retrofit emission control devices regulation from the REC informal working group.

Status report on the group’s current activities, including work on a new regulation covering heavy-duty dual-fuel retrofit systems.

Report covering the reactivation of the WLTP (light vehicle emissions GTR) informal working group and its work on “Phase 1b” aimed at refining the original GTR currently pending adoption before the World Forum.

Review by the Particle Measurement Program expert group of research on airborne particles from non-exhaust sources, especially particulates from brake friction materials and tires. The PMP group is evaluating whether such non-exhaust particulates represent an appropriate and feasible concern for further consideration as a possible regulatory issue.

Review of main issues concerning the measurement of sub-23 nm particles in vehicle exhaust, including work on NRMM vehicles.

Progress report on activities concerning environmental issues related to electric vehicles.

Review of the European validation program to assess the repeatability of the test procedure described in the Phase 1a GTR text.

Heinz Stephen presentation on the technical report on the development of the harmonized driving cycle used in the global technical regulation on light-duty vehicle emissions (WLTP).

Heinz Stephen presentation on the technical report on the development of the test procedures used in the global technical regulation on light-duty vehicle emissions (WLTP).

Heinz Stephen proposals for addressing selected technical issues remaining to be resolved through the supplemental phase (“phase 1B”) for the refinement of the global technical regulation on light-duty vehicle emissions.

Progress report on test validation and refinement efforts from the Technical University of Graz (concerning the chassis dynamometer test) and TNO (concerning the road load/coast down test)

Proposal of a test to reflect the CO2 values obtained under “real life temperature conditions”.