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Environmental and Propulsion Performance Requirements for L-category Vehicles (EPPR)

This page provides access to the documents and meetings of the L-Vehicle Environmental and Propulsion Performance Requirements.
No new meetings have been scheduled as of today.

The informal working group on environmental and propulsion performance requirements for L-category vehicles aligns with an initiative by the European Commission to revise type approval procedures for such vehicle types (see Regulation (EU) No 168/2013).

L-category vehicle is the family name of light vehicles such as powered cycles, mopeds, motorcycles, tricycles and quadricycles used in UN type-approval regulations. Category 3 is the counterpart class used by Global Technical Regulations.

In order to promote harmonization, the European Commission is pursuing the development of new laws under the proposed EU type-approval system for L-category vehicles through this informal group.

The EPPR group is developing new provisions concerning the following environmental performance assessment test:

  • I Tailpipe emissions test after cold start;
  • II Tailpipe emissions test at (increased) idle / free acceleration test;
  • III Emission test of crankcase gasses;
  • IV Evaporative emissions test;
  • V Durability testing of pollution control devices;
  • VII Measurement of energy efficiency (CO2 emissions, fuel consumption, electric energy consumption and electric range determination);
  • VIII environmental on-board diagnostic verification tests as well as functional on-board diagnostics.
  • Test VI: Cold ambient emissions is considered outside the scope of this effort.

Revisions to GTR No. 2 (WMTC) will address test types I, II, and VII while new Global Technical Regulations are expected on “crankcase and evaporative emissions” (IV and III, respectively), OBD (VIII), and, in a second phase, on durability and “propulsion unit performance requirements”.

The initial completion date for the first phase of work was June 2016; however, a proposal is under consideration to extend the EPPR group mandate into 2020.


The EPPR informal group has set up a page for its OBD 2 Correspondence Group with documents covering the motorcycle on-board diagnostics work.


Click here for more information about the Environmental and Propulsion Performance Requirements for L-category Vehicles.
Date Reference Description Status
06 Jan 2020 EPPR-30-04/Rev.1
Adopted report of the 30th EPPR session (teleconference)
Informal Group Report Motorcycle Emissions and Fuel Consumption WMTC Measurement procedure for two-wheeled motorcycles equipped with a positive or compression ignition engine with regard to the emission of gaseous pollutants, CO2 emissions and fuel consumption Motorcycle On-Board Diagnostic Systems L-OBD Project to establish a Global Technical Regulation and its homologous UN Regulation for motorcycle and moped on-board diagnostic systems. Durability of L-category Vehicle Pollution Control Devices L-vehicle Pollution Control Durability Requirements for Two- and Three-wheeled Light Motor Vehicles with regard to the Durability of the Pollution Control Devices EPPR-30-0004/Rev.1
06 Jan 2020 EPPR-31-15/Rev.2
Adopted report of the 31st EPPR informal group session
Informal Group Report Motorcycle Emissions and Fuel Consumption WMTC Measurement procedure for two-wheeled motorcycles equipped with a positive or compression ignition engine with regard to the emission of gaseous pollutants, CO2 emissions and fuel consumption Motorcycle On-Board Diagnostic Systems L-OBD Project to establish a Global Technical Regulation and its homologous UN Regulation for motorcycle and moped on-board diagnostic systems. Durability of L-category Vehicle Pollution Control Devices L-vehicle Pollution Control Durability Requirements for Two- and Three-wheeled Light Motor Vehicles with regard to the Durability of the Pollution Control Devices Measurement of Motorcycle Max Power Motorcycle Max Power EPPR-31-0015/Rev.2
13 Jan 2020 EPPR-33-01/Rev.2
Draft agenda for the 33rd EPPR informal group session
Informal Group Agenda Motorcycle Emissions and Fuel Consumption WMTC Measurement procedure for two-wheeled motorcycles equipped with a positive or compression ignition engine with regard to the emission of gaseous pollutants, CO2 emissions and fuel consumption Motorcycle On-Board Diagnostic Systems L-OBD Project to establish a Global Technical Regulation and its homologous UN Regulation for motorcycle and moped on-board diagnostic systems. Durability of L-category Vehicle Pollution Control Devices L-vehicle Pollution Control Durability Requirements for Two- and Three-wheeled Light Motor Vehicles with regard to the Durability of the Pollution Control Devices Measurement of Motorcycle Max Power Motorcycle Max Power EPPR-33-0001/Rev.2
13 Jan 2020 EPPR-33-02/Rev.1
33rd EPPR informal group session WebEx links
Informal Group Informal EPPR-33-0002/Rev.1
13 Mar 2020 EPPR-34-01/Rev.2
Agenda for the 34th EPPR informal group session
Informal Group Agenda Motorcycle Emissions and Fuel Consumption WMTC Measurement procedure for two-wheeled motorcycles equipped with a positive or compression ignition engine with regard to the emission of gaseous pollutants, CO2 emissions and fuel consumption Motorcycle On-Board Diagnostic Systems L-OBD Project to establish a Global Technical Regulation and its homologous UN Regulation for motorcycle and moped on-board diagnostic systems. Durability of L-category Vehicle Pollution Control Devices L-vehicle Pollution Control Durability Requirements for Two- and Three-wheeled Light Motor Vehicles with regard to the Durability of the Pollution Control Devices Measurement of Motorcycle Max Power Motorcycle Max Power EPPR-34-0001/Rev.2
06 Mar 2020 EPPR-34-02
Document withdrawn: Change of venue notice
Informal Group Informal EPPR-34-0002
05 Mar 2020 EPPR-33-03
Report of the 33rd EPPR informal group session
Informal Group Report Motorcycle Emissions and Fuel Consumption WMTC Measurement procedure for two-wheeled motorcycles equipped with a positive or compression ignition engine with regard to the emission of gaseous pollutants, CO2 emissions and fuel consumption Motorcycle On-Board Diagnostic Systems L-OBD Project to establish a Global Technical Regulation and its homologous UN Regulation for motorcycle and moped on-board diagnostic systems. Durability of L-category Vehicle Pollution Control Devices L-vehicle Pollution Control Durability Requirements for Two- and Three-wheeled Light Motor Vehicles with regard to the Durability of the Pollution Control Devices Measurement of Motorcycle Max Power Motorcycle Max Power EPPR-33-0003
12 Mar 2020 EPPR-34-00
EPPR 34th session video conference instructions
Informal Group Informal EPPR-34-0000
12 Mar 2020 EPPR-34-03
Test result on power loss of a gearbox for maximum power (Korea)
Informal Group Informal Measurement of Motorcycle Max Power Motorcycle Max Power EPPR-34-0003
16 Mar 2020 EPPR-34-04
Report of the 34th EPPR informal group session
Informal Group Report Motorcycle Emissions and Fuel Consumption WMTC Measurement procedure for two-wheeled motorcycles equipped with a positive or compression ignition engine with regard to the emission of gaseous pollutants, CO2 emissions and fuel consumption Motorcycle On-Board Diagnostic Systems L-OBD Project to establish a Global Technical Regulation and its homologous UN Regulation for motorcycle and moped on-board diagnostic systems. Durability of L-category Vehicle Pollution Control Devices L-vehicle Pollution Control Durability Requirements for Two- and Three-wheeled Light Motor Vehicles with regard to the Durability of the Pollution Control Devices Measurement of Motorcycle Max Power Motorcycle Max Power EPPR-34-0004
25 Mar 2020 EPPR-35-01
Agenda for the 35th EPPR informal group session
Informal Group Agenda Motorcycle Emissions and Fuel Consumption WMTC Measurement procedure for two-wheeled motorcycles equipped with a positive or compression ignition engine with regard to the emission of gaseous pollutants, CO2 emissions and fuel consumption Motorcycle On-Board Diagnostic Systems L-OBD Project to establish a Global Technical Regulation and its homologous UN Regulation for motorcycle and moped on-board diagnostic systems. Durability of L-category Vehicle Pollution Control Devices L-vehicle Pollution Control Durability Requirements for Two- and Three-wheeled Light Motor Vehicles with regard to the Durability of the Pollution Control Devices EPPR-35-0001