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Zero emission buses are worth reaching for, but emission performance standards are the low-hanging fruit

Sales of battery electric buses (BEBs) are surging in major cities around the world. Los Angeles, California committed to shift its 2,200 bus fleet to zero-emission buses (including BEBs) by 2030,...Sales of battery electric buses are surging, yet a complete technology transition won't happen overnight. Meanwhile, tightening emission standards on conventionally powered buses would have immediate...
Published 2017.11.16: Blog Post

Legislative do over creates opportunity for clean bus transition in São Paulo

On September 12, 2017, the Climate Committee of São Paulo approved a proposed amendment to Article 50 of the city’s Climate Change Law, one of several proposals now under discussion to improve the...São Paulo’s clean bus transition has been delayed for long enough. The negotiations of the Article 50 amendment provide an opportunity for policymakers to put the city back on the right path for...
Published 2017.10.23: Blog Post

Accelerating deployment of soot-free bus rapid transit fleets

The Soot-Free Urban Bus Fleets Project aims to secure commitments in 20 megacities to shift new bus procurements to the cleanest bus engine technology. ICCT Clean Air Program Lead Ray Minjares will...
Published 2017.10.18: Event

Clean urban bus fleets — Industry partnership and city action

ICCT Clean Air Program Lead Ray Minjares will present on the recent activities of the CCAC Soot-Free Urban Bus Fleets Project, including the Global Industry Partnership on Soot Free Clean Bus Fleets...
Published 2017.10.13: Event

Financing the transition to soot-free urban bus fleets in 20 megacities

This report addresses the opportunities for facilitating, and the barriers to financing, the transition to soot-free urban bus fleets in 20 megacities. A soot-free engine is any diesel or alternative...
Published 2017.10.11: Publication

Bus manufacturers commit to bring cleaner 'soot-free' buses to 20 megacities

Paris, France (27 September 2017) — Four of the world’s largest bus and engine manufacturers have committed today to make it easier for major cities to purchase buses equipped with low emissions...
Published 2017.09.27: News

Low-carbon technology pathways for soot-free urban bus fleets in 20 megacities

Urban transit bus fleets are a significant source of air pollutant emissions, including black carbon, a harmful ultrafine particle and potent short-lived climate pollutant. Transit bus fleets are...
Published 2017.08.31: Publication

Effect of P-8 standards on bus system costs in Brazil

Brazil has controlled harmful pollutant emissions from heavy-duty vehicles (HDVs), including trucks and buses, through a series of progressively more stringent vehicle emissions standards put in...
Published 2017.04.14: Publication

Workshop on particle emissions from heavy-duty buses and trucks, alternatives for Mexico City

The workshop was held at the Quinta Colorada in Chapultepec Park on September 26 and 27, 2016 and was co-sponsored by the ICCT and the Climate & Clean Air Coalition (CCAC). Mayor Miguel Ángel...
Published 2016.10.05: Event

Mexico City commits to a soot-free urban bus fleet

In Mexico City the summer rains have brought temporary relief from the choking, eye-watering, crisis-level air pollution of the spring. Driving restrictions have been lifted for private cars (...For any city wanting to reduce air pollution from vehicle emissions, buses are an obvious place to start. Mexico City has requested our support, and we will be developing a joint workplan, to kick...
Published 2016.07.28: Blog Post

Cost and benefits of clean technologies for bus rapid transit (BRT): Summary of results for Nairobi

Bus Rapid Transit (BRT) systems have been shown to be one of the biggest reducers of greenhouse gases emissions in cities of developing countries. The sustainability of BRT systems will however...
Published 2012.12.14: Publication

Urban off-cycle NOx emissions from Euro IV/V trucks and buses

Despite meeting more stringent regulatory standards for exhaust emissions during type approval, many Euro IV and Euro V heavy-duty vehicles equipped with selective catalytic reduction (SCR) systems...
Published 2012.04.10: Publication

CNG bus emissions roadmap

In the 1990s, there were several motivations for an increased interest in the use of compressed natural gas (CNG) buses around the globe. However, the imposition of more stringent emission standards...
Published 2010.06.15: Publication