Administrative Law

Chevron Gets the Headlines, But State Farm May Be More Important

The abortion pill case could undermine the authority of agency’s expert judgments.

The Chevron doctrine requires judges to defer to an agency’s interpretation of a statute if that interpretation is reasonable. The State Farm case, which is much less widely known, requires courts to defer to an agency’s expert judgment unless its reasoning has ignored contrary evidence or has a logical hole. As you probably already know, …

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The New EPA Car Rule Doesn’t Violate the Major Questions Doctrine

They both relate to climate, but West Virginia v. EPA involved a very different regulation raising very different issues.

In West Virginia v. EPA, the Supreme Court struck down the Obama-era Clean Power Plan.  The heart of the ruling was that EPA had engaged in a power grab, basing an unprecedented expansion of its regulatory authority on an obscure provision of the statute.  Conservative groups have claimed since then that virtually every government regulation …

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Deciphering NEPA 2.0

Here’s everything you wanted to know about the “New NEPA” but were afraid to ask.

NEPA was long an island of legal stability, standing almost unamended for over a half century.  Then in the summer of 2023, everything changed.  As a rider on the agreement to raise the debt ceiling, Congress extensively rewrote and expanded NEPA, gifting us with a new statutory regime.  As I’ve written before — and discuss …

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America’s Leading Environmental Court

Hint: It’s in the southernmost state.  Which is not Florida.

The state court on the cutting edge of environmental law is a long way from the major population and media centers, which may be one reason it doesn’t get much attention.   It deserves more. The Hawaiian Supreme Court has been forging new paths in environmental law that may lead the way for other courts in …

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The New Particulate Standard and the Courts

The tough new air quality standard is sure to be challenged in court. Winning the challenges will be tougher.

EPA has just issued a rule tightening the air quality standard for PM2.5 — the tiny particles most dangerous to health — from an annual average of 12 μg/m³  (micrograms per cubic meter) down to 9 μg/m³. EPA estimates that, by the time the rule goes into effect in 2032, it will avoid 4500 premature …

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The Long Life and Sudden Demise of Federal Wetlands Protection

Here’s a timeline of events.

It’s no wonder that one EPA staffer’s reaction to the Supreme Court ruling was a single word: “Heartbroken.” In 2023, the Supreme Court ended fifty years of broad federal protection to wetlands in Sackett v. United States.  It is only when you look back at the history of federal wetland regulation that you realize just …

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Interstate Pollution and the Supreme Court’s “Shadow Docket”

The Court considers whether to stay an EPA plan in light of changed circumstances.

Later this month, the Supreme Court will hear oral argument about whether to stay a plan issued by EPA to limit upwind states from creating ozone pollution that impacts other states.  As I wrote before the Court decided to hear the arguments, the issues here seem less than earthshaking, and for that matter, less than …

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More Unforced Errors in the 2023 NEPA Amendments

Bluntly speaking, the statute is a mess.

When the 2023 amendments to NEPA passed as part of the debt ceiling bill, I wrote a series of blog posts about the drafting errors. It turns out that I missed some, as I discovered when working on the new edition of my environmental law casebook.  They really aren’t all that subtle, and it’s hard …

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The Statutory EIS Process: A Primer

Last year, Congress tried to codify NEPA law. Here’s how the process is supposed to work.  

Because NEPA’s discussion of environmental impact statements (EIS) was very brief, the requirements and procedures were elaborated by courts and  guidance from a White House office. That changed in 2023, because  much of the subject is now covered explicitly by new statutory language.. Thus, NEPA is a bit less of a “common law” subject than …

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The Unique Legal Context of EPA Methane  Regulations

Three separate congressional actions intersect to support the regulations.

The government’s efforts to control methane have followed a complicated path, involving three different congressional actions:  section 111 of the Clean Air Act,  which allows EPA to regulate emissions of greenhouse gases; a congressional override of an earlier regulatory action; and a newer statute that creates a fee on methane emissions.  The upshot is to …

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