FWS introduced the Guam kingfisher on Palmyra Atoll as a nonessential experimental population under the ESA.

EPA entered into a proposed consent decree under the CAA in Citizens for Clean Air v. Regan, No. 2:22-cv-01382-RSL (W.D. Wa.), that would establish a deadline for the Agency to take action in connection with its alleged failure to perform non-discretionary duties mandated by the Act to take final action on a nonattainment SIP submission made by Alaska regarding the 2006 24-hour fine particulate matter NAAQS for the Fairbanks North Star Borough area.

FWS determined threatened species status for the northern distinct population segment of the southern subspecies of scarlet macaw under the ESA.

BLM proposed new regulations that would advance its mission to manage public lands for multiple use and sustained yield by prioritizing the health and resilience of ecosystems across those lands.

United States v. Matador Production Co., No. 23-cv-00260 (D.N.M. Mar. 27, 2023).  A settling CAA defendant must pay a civil penalty of $1,150,000, and spend at least $1,250,000 on a diesel emission reduction supplemental environmental project (SEP) and at least $500,000 on a state aerial emission monitoring SEP in connection with alleged violations at 25 of the defendant's oil and natural gas facilities in New Mexico.

SIP Proposal: California (revisions satisfying the requirements of the Title I, Part D CAA permitting program for the El Dorado County Air Quality Management District).

EPA determined that California submitted a rule that satisfies the requirements of Title I, Part D of the CAA permitting program for areas under jurisdiction of the El Dorado County Air Quality Management District.

EPA seeks comment on a draft document titled, “Integrated Science Assessment for Lead (External Review Draft)” as part of the review of the primary and secondary lead NAAQS.

The U.S. Coast Guard seeks input from the public on the Maritime Oil-Spill Response Plan Advisory Group recommendations for changes to the Coast Guard’s vessel response plan program and policies.

SIP Proposal: California (second 10-year maintenance plan for the Coso Junction planning area).