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Maximum achievable control technology (MACT)

U.S. Sugar Corp. v. Environmental Protection Agency

The D.C. Circuit, in a 162-page opinion, granted in part and denied in part petitions challenging three EPA rules setting NESHAPs for industrial, commercial, and institutional boilers and commercial and industrial solid waste...

Wildearth Guardians v. Lamar Utilities Board

A district court held that utilities violated CAA §112(g) by upgrading an existing power plant in Lamar, Colorado, from a natural gas-fired plant into a coal-fired one without receiving a maximum achievable control technology (MACT)...

Wildearth Guardians v. Public Service Co. of Colorado

The Tenth Circuit dismissed as moot an environmental group's CAA citizen suit against an energy company for building a new coal-fired power plant in Pueblo, Colorado, without a valid construction permit. Although the project initially...

Sierra Club v. Sandy Creek Energy Associates, L.P.

The Fifth Circuit held that an energy company's current and ongoing construction of a coal-fired power plant, for which no maximum achievable control technology (MACT) determination has ever been made, violates CAA §112(g). In...