air quality Archives

Colorado joins multistate lawsuit challenging federal government’s reckless rollback of national clean car standards

May 27, 2020

By COAG Admin

Weiser says Colorado will challenge the federal government’s ‘misguided’ rollback of clean car standards

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Most Recent

Attorney General Phil Weiser: Agreement puts Paramount/Warner Bros. merger on hold until next year

July 24, 2026 (DENVER) – Attorney General Phil Weiser released the following statement regarding the stipulation filed today in federal court that stops Paramount and Warner Bros. from merging until the court rules on the merits of the case or […]

Attorney General Phil Weiser files lawsuit challenging unlawful conditions on federal counterterrorism funds

July 23, 2026 (DENVER) – Attorney General Phil Weiser joined a coalition of 26 states to stop the Trump administration’s continued efforts to use billions of dollars in federal emergency management and homeland security funding to coerce states into complying […]

Attorney General Phil Weiser sues over Trump EPA rule that weakens regulation of highly potent greenhouse gas

July 21, 2026 (DENVER) – Attorney General Phil Weiser today joined a coalition of 19 attorneys general in filing a lawsuit against the U.S. Environmental Protection Agency, challenging its rule that would weaken regulations designed to phase out the use […]