NAAQS

The D.C. Circuit last week struck down parts of an Environmental Protection Agency (EPA) rule concerning implementation of its 2008 ozone standards, creating new regulatory limbo for the entities required to comply with the rule. Ruling in a set of cases consolidated under South Coast Air Quality Management District v. EPA (No. 15-1115), the federal […]

New York and Connecticut on January 17 filed suit to force the Environmental Protection Agency (EPA) to curb ground-level ozone blowing in from Illinois, Michigan, Pennsylvania, Virginia, and West Virginia with federal implementation plans (FIPs) issued under the “Good Neighbor Provision” of the 2008 National Ambient Air Quality Standards (NAAQS). The two states allege in their […]

The Environmental Protection Agency (EPA) is giving states an extra year to develop air quality plans related to the 2015-National Ambient Air Quality Standards (NAAQS) for ground-level ozone. In a June 6 letter sent to U.S. governors, EPA Administrator Scott Pruitt announced that the extended deadline for promulgating initial area designations for the rule issued […]

If the Clean Power Plan is scrapped or weakened, the Environmental Protection Agency (EPA) may be forced to regulate greenhouse gases (GHGs) emitted by existing power plant with wider repercussions under its National Ambient Air Quality Standards (NAAQS) program, experts have warned. While President-Elect Donald Trump promised to “scrap” the Clean Power Plan during his […]

Texas is the latest state to file suit against the Environmental Protection Agency (EPA) over its recently finalized standards for ozone. The state joins Arizona, Arkansas, Kentucky, New Mexico, North Dakota, Oklahoma, Utah, and Wisconsin, which have legally challenged the final version of the EPA’s National Ambient Air Quality Standards (NAAQS) for ozone since its […]

The Environmental Protection Agency (EPA) on Oct. 1 released the final version of new National Ambient Air Quality Standards (NAAQS) for ozone, cutting the current limit of 75 ppb to 70 ppb. The move sets the stage for a battle with Congress, the states, and a range of industries that have warned the new ozone […]

An emergency action proposed by Maryland regulators on Friday will require 14 coal-fired units in the state to minimize nitrogen oxide (NOx) emissions every day during the 2015 summer ozone season, starting as soon as May 1.  The rule submitted on April 17 by the Maryland Department of the Environment (MDE) to the Joint Committee […]

Estimates vary widely, but even the Environmental Protection Agency acknowledges that lowering the ozone standard will cost billions. How will it affect power companies? It could make approval of new projects much more difficult. Even in the annals of expensive environmental regulations and the hyperbole that often accompanies them, the numbers are eye-popping: $140 billion […]

The Byron Sher Auditorium in Sacramento, Calif., was filled at times with students, parents, and other concerned citizens as the Environmental Protection Agency (EPA) held the last of three public hearings on proposed updates to the national air quality standards for ground-level ozone on Feb. 2. The hearings were scheduled as part of the policymaking […]

Compliance cost estimates for a revised ozone national ambient air quality standard (NAAQS) soon to be proposed by the Environmental Protection Agency (EPA) “will be little better than guesses,” the Congressional Research Service (CRS) says in a recent document.  The NAAQS does not directly impose emission controls on industry, “but it sets in motion a process […]