The federal agencies issued their semiannual regulatory agendas providing specific information on the status of regulations under development and revision. Rulemaking actions are grouped according to prerulemaking, proposed rules, final rules, long-term actions, and rulemaking actions completed since the April 2010 agenda. EPA's agenda can be found at 75 FR 79844.

EPA entered into a settlement agreement under CERCLA determining that the settling party is unable to pay U.S. response costs incurred at the 10000 Havana Street Superfund site in Henderson, Colorado.

EPA entered into a proposed administrative settlement under CERCLA that requires the settling party to pay $25,000 in U.S. response costs incurred at the Auclair Superfund site on the Torres Martinez Desert Cahuilla Indian Reservation in Riverside County, California.

DOE amended energy conservation standards for residential clothes dryers and room air conditioners.

The U.S. Forest Service seeks public comment on a proposed new rule to guide land and resource management planning for all units of the National Forest System.

EPA seeks public comment on its plan for periodic retrospective review of regulations as called for by Executive Order No. 13563, Improving Regulation and Regulatory Review.

EPA proposed a supplemental federal implementation plan for the Four Corners power plant on the Navajo Nation in New Mexico to reduce visibility-impairing pollution.

EPA proposed to restrict the states' use of emission reduction credits from outside a nonattainment area to meet the 1997 eight-hour ozone NAAQS.

EPA delegated authority to Iowa, Kansas, Missouri, and Nebraska to implement and enforce NESHAPs and new source performance and maximum achievable control technology standards.

United States v. City of Wyandotte, No. 2-11-cv-12181 (E.D. Mich. May 18, 2011). A settling CAA defendant responsible for permit violations at a power plant in Wyandotte, Michigan, must pay a $112,000 civil penalty, must perform a supplemental environmental project at an estimated cost of $210,000, and must install new emission controls and implement operational practices to reduce emissions.