Inspection and maintenance (I/M) programs are key to identifying high-emitting vehicles and mitigating their impact on air quality and climate. This paper assesses best practices for I/M programs targeting heavy-duty vehicles and makes recommendations on how to improve HDV I/M programs in the future.

India is currently considering establishing fuel efficiency regulation for new trucks and buses. This process formally started in July 2014 when the Ministry of Petroleum and Natural Gas officially constituted a Steering Committee to guide the regulatory development process (Minstry of Petroleum & Natural Gas 2014).

Analyzes the implications of a growing natural gas vehicle fleet on the emission benefits of the U.S. HDV “Phase 2” greenhouse gas rulemaking, synthesizing data on upstream emissions, vehicle emissions, and efficiency technology.

This briefing paper is a technical summary for policy makers of the status of hybrid vehicle development in the United States. Both sales of hybrid vehicles and the number of hybrid

The purpose of this briefing is to provide a summary of CO 2 emission levels of new passenger cars in the European Union (EU), based on the provisional data recently released by the European Environment Agency (EEA).

Controlling emissions from the in-use fleet, particularly from high emitters and older vehicles, can immediately alleviate urban air pollution. As pressure to address China's air quality issues builds, Guangdong Province has taken several steps toward that end.

China has made tremendous progress in emission control for on-road vehicles (light duty vehicles, buses, and heavy-duty trucks) in recent decades. The vehicle population in China grew nearly sevenfold, from 16 million to 108 million, between 2000 and 2012, and this rapid pace will continue for the foreseeable future.

On June 19, 2015, the U.S. Environmental Protection Agency and the National Highway Traffic Safety Administration jointly proposed new standards to reduce the fuel consumption and greenhouse gas emissions of new heavy-duty vehicles, tractors, trailers, and engines.

As policymakers and stakeholders in India begin the regulatory development process for fuel efficiency standards for new heavy-duty vehicles (HDVs), one of the key areas of debate has been whether or not separate performance standards for engines are an appropriate first step.

This briefing paper reviews the status of motor vehicle energy efficiency and emissions control programs in G20 nations. These programs have four components: low-sulfur fuel standards; tailpipe emissions standards for new vehicles; fuel economy and CO2 standards for new vehicles; and voluntary Green Freight programs.