SIP Approval: New Jersey (redesignation to attainment and limited maintenance plan for the Warren County 1971 sulfur dioxide nonattainment area).

The president issued a memorandum to the heads of executive departments and agencies regarding the restoration of healthy and abundant salmon, steelhead, and other native fish populations in the Columbia River Basin.

SIP Approval: Washington (minor updates to Southwest Clean Air Agency’s general regulations for air pollution sources).

EPA took interim final action to stay, for emissions sources in Alabama, Minnesota, Nevada, Oklahoma, Utah, and West Virginia only, the effectiveness of the federal implementation plan requirements established to address the obligations of these and other states to mitigate interstate air pollution with respect to the 2015 NAAQS.

FWS proposed to establish a nonessential experimental population of the grizzly bear within the U.S. portion of the North Cascades Ecosystem in the state of Washington under §10(j) of the ESA.

United States v. Mount Vernon, No. 18-5845 (S.D.N.Y. Sept. 19, 2023). Under a proposed consent decree, a settling CWA defendant must take steps necessary to bring its municipal separate storm sewer system into compliance and pay a $100,000 civil penalty.

SIP Approval: Indiana (revisions to emissions limits for certain facilities to maintain attainment/unclassifiable designations for the 2010 one-hour sulfur dioxide NAAQS).

SIP Proposal: New Jersey (revisions concerning exemptions to improve resiliency during emergency situations, updates to hazardous air pollutant reporting thresholds, updates to the certification and submission of emission statements, and the addition of federal new source review requirements for fine particles).

SIP Approval: Washington (revisions to Southwest Clean Air Agency’s requirements for Stage I and Stage II vapor recovery systems at gasoline dispensing facilities).

SIP Approval: Washington (revised outdoor and agricultural burning rule).