In 2011 a particle number (PN) limit was introduced in the European Union’s vehicle exhaust legislation for diesel passenger cars. The PN method requires measurement of solid particles (i.e. those that do not evaporate at 350 °C) with diameters above 23 nm. In 2013 the same approach was introduced for heavy duty engines and in 2014 for gasoline direct injection vehicles. This decision was based on a long evaluation that concluded that there is no significant sub-23 nm fraction for these technologies. This SAE paper (2015-24-2512) examines the suitability of this PN method for L-category vehicles (two- or three-wheel vehicles and quadri-cycles).

Catalog of documents submitted to the EPPR informal group, including classification by test cycle and highlighting in red of documents currently under discussion.

Barouch Giechaskiel, Alessandro Zardini, and Giorgio Martini (EC Joint Research Centre) SAE paper examining the suitability of current EU particle number methods for application to motorcycle-type vehicles.

Announcement and link to an EC survey seeking views on the impact of Regulation (EU) No 168/2013 with regard to benefits, costs and technical feasibility of the Euro 5 Environmental Step.

Comments on the draft minutes from the 9th session, including proposed European Commission revisions and initial discussions during the 10th EPPR informal group session.

Comparison of the proposal to extend the mandate of the informal group working on motorcycle and other L-category vehicle propulsion system requirements with the original mandate of the group.

Update on the JRC comprehensive environmental effects study to evaluate the air quality and the share of pollutants contributed by L-category vehicles, covering the requirements of test types I, III, IV, V, VII and VIII.

Proposal to extend the EPPR informal working group mandate into 2020 in order to permit the group to cover the full range of identified emissions and fuel consumption issues related to the full range of motorcycle and related light vehicles (Category 3/Category L).

Recently EU-Directive 2013/60 has been introduced in which chapter 5 of EU Directive 97/24 is amended. One of the amendments concerns the introduction of reference fuels E5 (petrol) and B5 (diesel fuel). When stage C in 97/24-5 is being applied for, reference is made to GTR No. 2. In GTR No. 2, however, these reference fuels have not yet been incorporated. Document GRPE-69-02 proposed to incorporate these fuels into GTR No. 2; however, pursuant to comment received from several Contracting Parties, the Netherlands proposes to withdraw the document while retaining the option to revisit the issue in the future.