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Conformity requirements, §176(c)

Natural Resources Defense Council v. U.S. Department of Transportation

The Ninth Circuit held that DOT did not violate the CAA or NEPA in its approval of a planned expressway connecting the Ports of Los Angeles and Long Beach, California. In the course of the project’s approval process, DOT conducted an...

Natural Resource Defense Council v. Environmental Protection Agency

The D.C. Circuit upheld an EPA rule issued in 2010 that amends and clarifies transportation conformity regulations as they pertain to hot spot analyses in particulate matter (PM) nonattainment and maintenance areas. Transportation...

1000 Friends of Md. v. Browner

The court denies an environmental group's petition to review the U.S. Environmental Protection Agency's (EPA's) approval of Maryland's revised motor vehicle emissions budget (MVEB) for the Baltimore ozone nonattainment area. In 1999,...

Environmental Defense Fund v. EPA

The court holds unlawful U.S. Environmental Protection Agency (EPA) regulations that allow both local approval and federal funding of transportation projects that fail to satisfy the Clean Air Act's (CAA's) state implementation plan (...