Emission results from the New European Driving Cycle and Japanese Driving Cycle will continue to be accepted till local industry is ready for a complete switchover to WLTP

Singapore, 21 December 2018 – From 1 January 2019, the National Environment Agency (NEA) will accept emission test results for pollutants [1] from the Worldwide harmonised Light-duty vehicles Test Procedure (WLTP) for type approval of new vehicles and assessment under the Vehicular Emissions Scheme (VES). Together with the WLTP, NEA will continue to accept pollutant emission results from the New European Driving Cycle (NEDC) [2] and Japanese Driving Cycle (JC08) for type approval of new vehicle models and for reporting of pollutant emission values under the VES.

2          Currently, Singapore accepts emission test results for pollutants from the NEDC and JC08. With the EU and Japan now transiting towards the WLTP, Singapore will similarly accept test results from the WLTP to provide a more uniform procedure to measure emissions from new vehicles. Refer to Annex A for information on the WLTP.

3          NEA will continue to monitor international developments and work with the local motor industry towards a complete switchover to the WLTP in the longer term. We will continue engaging the industry and will announce the details when ready. During this transition period, NEA will accept pollutant emission results from the WLTP, NEDC [3] and JC08 for type approval of new vehicle models and for reporting of pollutant emission values under the VES.

4          Air pollution is a key threat to public health in many cities. According to the World Health Organization (WHO), air pollution is the biggest environmental health risk. While Singapore’s overall air quality is comparable to that of many major cities of developed countries, we still fall short of meeting our air quality targets for pollutants such as ozone and particulate matter (PM). Like many other major cities, vehicular emissions are a key source of air pollution domestically. Accepting the WLTP is part of Singapore’s effort to further improve Singapore’s ambient air quality and safeguard public health. Refer to Annex B for Singapore’s air quality targets for 2020.

[1] These are carbon monoxide, hydrocarbons, nitrogen oxides and particulate matter.
[2] For carbon dioxide and fuel consumption, Singapore only accepts the UNECE R101 standard under the NEDC.
[3] For carbon dioxide and fuel consumption, Singapore only accepts the UNECE R101 standard under the NEDC.

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For more information, please contact us at 1800-CALL NEA (1800-2255 632) or submit your enquiries electronically via the Online Feedback Form or myENV mobile application.

ANNEX A

Factsheet on the WLTP

Laboratory tests are used to measure fuel consumption, carbon dioxide emissions and pollutant emissions from new light-duty vehicles. The EU has developed a new laboratory test, the Worldwide harmonised Light-duty vehicles Test Procedures (WLTP), to keep pace with evolutions in technology and driving conditions.

2          The WLTP is a new regulatory test procedure for light passenger cars and commercial vehicles to determine fuel consumption and emissions. It has been gradually introduced in Europe since September 2017.

3          The WLTP will provide a more uniform procedure for calculating a vehicle’s fuel consumption and emissions.  

4          The WLTP driving cycle introduces more realistic testing conditions compared to the New European Driving Cycle (NEDC) and Japanese Driving Cycle (JC08). The key differences include:

• a greater range of driving situations
• shorter stops
• longer test distances

Comparison of Key Differences Between the NEDC, JC08 and WLTP Test Cycles

5          Visit www.wltpfacts.edu/wltp-benefits for more information.

ANNEX B

Singapore Ambient Air Quality Targets

* also concurrently WHO Final Targets