Clean Transportation

Clean Transportation

Clean Transportation

Transportation is a major source of air pollution and has the largest, fastest-growing climate emissions in the US. We can tackle the climate crisis and clean up our air by shifting to pollution-free vehicles, accessible public transit, and making our communities more walkable, bikeable, and transit-friendly. No matter their zip code, race, income level, age, or any other factor people should be able to rely on clean and safe transportation. Join the Sierra Club’s Clean Transportation for All campaign in making that vision a reality!


Clean Transportation For All

The Sierra Club’s Clean Transportation For All (CTFA) campaign reduces the harmful environmental and public health impacts of transporting people and goods while expanding equitable transportation options.

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Clean Vehicle Programs: State Tracker

Momentum is building! Several states across the country are moving forward with programs to deliver cleaner air to their residents and clean up polluting cars and trucks, including large pickup trucks, delivery trucks, and semi-trucks. 

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Compact mixed-use communities promote riding transit, biking, walking, scooting, and carpooling.

Land Use & Walking/Biking

Sierra Club chapters nationwide are working with cities, regions, states, and transit agencies to increase investment in biking, pedestrian, and public transit programs. Together, we can pass transportation policies that encourage smart growth and discourage sprawl to allow people to sustainably access jobs, housing, education, healthcare, nature, and community.

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September 24, 2026

Los Angeles - Today, LA Metro approved the purchase of 220 battery-electric buses, one of the largest electric transit bus purchases in the country and a major step towards Metro accelerating implementation of its zero-emission bus commitment…

September 22, 2026

NATIONWIDE - The U.S. is about to see a major expansion of electric heavy trucks on the roads with the announcement of the first tranche of 2,500 trucks as part of a 10,000 vehicle order – the largest in the U.S. to date, nearly doubling the U.S.…

September 15, 2026

WASHINGTON, D.C. — Congress is considering a slate of Congressional Review Act resolutions that would roll back state clean air protections, including standards that cut toxic diesel pollution from ships and commercial harbor craft that…

September 3, 2026

WASHINGTON, D.C. — Yesterday, a federal judge granted California a preliminary injunction blocking EPA’s actions targeting four Clean Air Act preemption waivers previously granted to California.

August 31, 2026

Environmental and health groups are urging the Trump EPA not to weaken life-saving air pollution standards for heavy-duty vehicles like transit and school buses, delivery trucks, garbage trucks and long-haul semi-trucks.