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South American Summit on Vehicle Emissions Control

The South American Summit on Vehicle Emissions Control will take place in Buenos Aires, Argentina on 26-27 September, 2018. The event will be co-hosted by the United States Environmental Protection...
Published 2018.09.06: Event

China’s Stage VI emissions standard for heavy-duty vehicles (final rule)

On June 28, 2018, the Ministry of Ecology and Environment (MEE) of the People’s Republic of China released the final rule for the China VI emission standard for heavy-duty vehicles. The China VI...
Published 2018.07.20: Publication

Laboratory and on-road testing of exhaust emissions of two modern China 5 light-duty gasoline vehicles

There is growing evidence that vehicle emissions under real-world driving conditions can be significantly higher than certified emissions values as tested in the laboratory. As part of China’s...
Published 2018.07.13: Publication

CO2 emissions from new passenger cars in the EU: Car manufacturers' performance in 2017

The EEA recently released a preliminary dataset on the CO2 emissions performance of new passenger cars in the EU in 2017. This dataset is used by the European Commission to monitor and evaluate...
Published 2018.07.11: Publication

Overview and evaluation of eco-innovations in European passenger car CO2 standards

The eco-innovations mechanism rewards innovative technologies that produce real-world CO2 savings beyond what is measured over the standardized test cycle during vehicle type approval. Because CO2...
Published 2018.07.11: Publication

Off the hook: Europe's current ZLEV proposal would allow CO2 emissions of new combustion engine vehicles to increase

In order to promote the uptake of electrified vehicles, the European Commission included targets for zero-and low-emission vehicles (ZLEV) in its recent regulatory proposal for the time period up to...Even though targets for low- and zero-emission vehicles are an innovative approach for EU standards, they could undercut the climate benefit of the regulation. Fortunately, with some slight...
Published 2018.06.21: Blog Post

The Real Urban Emissions (TRUE) Initiative vehicle rating fact sheet

The TRUE initiative seeks to supply cities with data regarding the real-world emissions of vehicle fleets, and equip them with technical information that can be used for strategic decision-making....
Published 2018.06.04: Publication

India Bharat Stage IV and V non-road emission standards

India’s Ministry of Road Transport and Highways has released the final rule for non-road Bharat Stage (CEV/Trem) IV and V emission standards, including stringent emission limits on particulate matter...
Published 2018.06.04: Publication

Technical considerations for implementing a Real Driving Emissions test for passenger vehicles in India

This position brief makes specific recommendations regarding the adoption of Real Driving Emissions (RDE) testing in India. The recommendations are geared towards ensuring that implementation of an...
Published 2018.05.31: Publication

The European Commission proposal for heavy-duty vehicle CO2 standards sets fair, far-sighted, and achievable targets

The European Commission today proposed carbon dioxide (CO2) emission standards for heavy-duty vehicles. It is Europe’s first attempt at setting mandatory targets for reducing the greenhouse gas...
Published 2018.05.17: News

How to think about vehicle bans: An update after two major European judicial decisions

In August and again in December of last year, I was asked to speak about the implications of the surprising surge in public announcements of future bans on certain types of vehicles. At the time, I...There has been a surprising surge in announcements by cities and national governments of future bans on certain types of vehicles. These bans are a signal of growing political will, impatience with...
Published 2018.05.02: Blog Post

The role of standards in reducing CO2 emissions of passenger cars in the EU

The origin of the EU vehicle CO2 regulation is by now a well-known story. European car manufacturers promised to voluntarily reduce average CO2 emissions of new cars to 140 g/km by 2008, starting in...
Published 2018.02.12: Publication

Real-world emissions in China: A meta-study of PEMS data

Vehicle emissions control programs in China have made considerable progress, mainly attributed to the uptake of emissions control technologies driven by increasingly stringent standards and improved...
Published 2018.02.12: Publication

How well are governments enforcing vehicle emissions standards? Worldwide, the answer is: Not as well as they could be

New survey-based study shows notable disparities in compliance activities, accomplishments among most important global vehicle markets Washington DC—A new study cataloging and evaluating the efforts...
Published 2017.11.14: News

Global baseline assessment of compliance and enforcement programs for vehicle emissions and energy efficiency

As vehicle pollution and fuel efficiency regulations have become more stringent, the technologies required to mitigate emissions and reduce fuel consumption become increasingly complex. One...
Published 2017.11.14: Publication

Impacts and mitigation of excess diesel NOx emissions in 11 major vehicle markets

A new study published online May 15 in the journal Nature quantifies the global health and environmental burden of real-world diesel NOx emissions in 11 major vehicle markets. The study found that...
Published 2017.05.22: Event

Defeat devices under the U.S. and EU passenger vehicle emissions testing regulations

The paper aims to illuminate a paradox: Volkswagen and other automakers have asserted that software managing the emissions control systems on some of their vehicles, which they acknowledge either is...
Published 2016.03.22: Publication

The future of vehicle emissions testing in Europe (and beyond)

At the ICCT we have been analyzing the growing gap between official and real-world vehicle fuel consumption and CO2 emissions of passenger cars in Europe for a few years now. We showed for the first...To solve the problem underlying the growing gap between certification-test and in-use CO2 and NOx emissions, we will have to go beyond just introducing a new test procedure.
Published 2015.11.23: Blog Post

The miseducation of the diesel car

I recently read an open letter in the Corriere della Sera by a VW engineer working on engine development and emissions (that’s what I call a hot seat!). The letter contains some pretty remarkable...The preliminary agreement on the EU's Real-Driving Emissions regulation is a missed opportunity to address the air-quality problem by forcing the technological adjustments required to bring real...
Published 2015.11.04: Blog Post

Comparing real-world off-cycle NOx emissions control in Euro IV, V, and VI

Heavy-duty vehicles built and certified in conformity to Euro IV and V emissions standards frequently do not achieve the real-world NOx emissions expected under those standards. Now data is becoming...
Published 2015.03.02: Publication