Transportation

Policies on the Bus Go Round and Round

The Drain is a weekly roundup of environmental and climate news from Legal Planet.

A year ago, the transportation manager of Northshore School District, outside of Seattle, wrote to EPA Administrator Lee Zeldin pleading with him to release frozen funding she was owed for new school buses. “We need your assistance to complete these projects and lift the financial burdens school districts are facing due to the delay in …

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The Affirmative Case for Finding Endangerment

Despite hairsplitting by the current EPA, finding endangerment is a no-brainer.

or EPA to decide that vehicle greenhouse gas (GHG) emissions aren’t harmful is iike NASA deciding that the earth isn’t round after all. Over the next year or two, lawyers will be picking over EPA’s detailed legal arguments. Let’s not get mired in the weeds. It’s crazy that this issue is even being raised.
In 2007, the Supreme Court told EPA to do two things: (1) consider whether GHGs endanger human health and welfare, and (2) if the answer is yes, regulate vehicle emissions of GHGs.  That’s exactly what EPA did. Nothing has changed in the meantime.

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How California (And Other States) Can Drive Demand for Clean Trucks

CLEE and the Emmett Institute release new report today and will hold Jan. 13 webinar with Energy Commissioner Nancy Skinner keynote.

This post is co-authored by CLEE fellow Marie Grimm. California’s policies to phase out polluting diesel trucks with zero-emission models took a major hit this year from the federal government. In June 2025, Congress voted to overturn federal permission for California’s zero-emission truck mandate (although this vote is now subject to litigation). In July, Congress …

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The Lingering Legal Issue of California’s Limits on Vehicle Emissions

The issues are complex, but the state has some strong legal arguments on its side.

The odds are high that the Trump Administration will withdraw California’s power to regulate greenhouse gas emissions from cars and trucks – and along with it, California’s effort to become all-electric. This is a crucial issue for the state because transportation accounts for about 40% of the state’s emissions. It’s also crucial for the other states have exercised the option of adopting California standards.  The issues are complex, involving an unusual statutory scheme.  Here’s what you need to know, and why I think California should win this fight.

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Does the Law Require Cost-Benefit Analysis?

According to the D.C. Circuit, the answer is no.

Putting aside the particulars of the case, it seems wrong to apply the same standard (monetized cost-benefit analysis) to every provision in environmental law. These provisions have different language, reflecting differences in congressional priorities. Some provisions, for instance, may be designed push industry to find innovative solutions; others may reflect Congress’s value judgments or a desire to limit EPA’s discretion.  We shouldn’t assume that the myriad differences in statutory language are irrelevant and that Congress wanted agencies to adopt the same method of making decisions in every case.

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Supply-Side Regulations & Clean Vehicles

As Congress votes to undermine California’s sovereignty to set supply-side standards on polluting vehicles, CLEE’s research shows why these policies are so effective

In May 2025, both the U.S. House and Senate passed resolutions to revoke California’s Clean Air Act waivers, which allow the state to enforce stricter vehicle emissions rules than federal standards (see Ann Carlson’s post on this issue). If signed by the President—and if successful in the face of court challenges to their dubious legality—these …

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“What We Do Matters:” UCLA’s Charging Ahead Symposium

States and cities have a lot of tools to cut vehicle pollution. It’s time to break them out.

Trump is a bump. A nasty one, but a bump nonetheless, because the world is on the road to zero-emission fuels and vehicles no matter what. That was one takeaway from “Charging Ahead,” the UCLA Emmett Institute’s annual symposium held on April 9 — devoted this year to cutting vehicle pollution during the next four …

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Getting Creative on Vehicle Emissions

UCLA Law set to host a symposium on April 9 on ways to charge ahead on cutting emissions.

These are tough times for lovers of zero emission vehicles–and clean air.  I probably don’t need to recite the threats to both, but here’s a sampling: the Trump Administration has pledged to roll back federal air quality standards and mobile source emissions standards; is gutting funding for EV charging networks (and is even, maddeningly, shutting …

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The California Car Waiver and the Congressional Review Act  

Trump has found a possible way to end run California’s legal arguments for the waiver. But there’s no reason to give up.

If the CRA resolution does go through, California should wait until after the midterms, when Democrats are favored to take the House, and then try again with different formulated regulations. When the Trump Administration rejects them, it could then litigate whether the new versions were “substantially the same” as the old ones.

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The Green-State Playbook

Here are five ways states can save climate policy despite Trump.

Trump’s election is a body blow to U.S. climate policy, but there are ways that those states can fight Trump and move forward on their own plans. To cut to the chase, here are five key strategies for green states — starting with lawsuits against the Trump Administration, which were highly successful in Trump’s first term.

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