The U.S.-China Race to Zero Emissions (R2ZE) challenge aims to promote the development and adoption of innovative Zero Emission Bus (ZEB) technology and to stimulate demand for ZEBs, leading to greater economic growth and reduction in greenhouse gas emissions. Through this collaborative and friendly competition, R2ZE encourages transit agencies to incorporate new generations of advanced, non-polluting ZEBs into their fleets and onto streets in the United States and China.

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Image of bus front, back, left, right sides
January 29, 2017


UC Irvine is the first college campus in the US switching its entire bus fleet to zero emissions. For approximately $15 million, UC Irvine will acquire 20 all-electric buses manufactured by BYD. The Anteater Express shuttle service at UC Irvine is student-funded.

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Race to Zero Emission Logo
January 13, 2017

The U.S. DOT and the Chinese Ministry of Transport announced the official guidelines for the R2ZE Challenge. The guidelines provide details on how the race will be conducted and how transit agencies can join the race.

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Proterra bus
January 12, 2017


King County’s Metro Transit, which includes Seattle’s metro area, and is a leader in clean vehicle technology, announced a zero-emission transition of its fleet of buses and confirmed that it will add 120 new all-electric buses over the next 3 years.

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