On March 12, 2025, EPA Administrator Zeldin announced that the agency, as one of its 31 historic deregulatory actions to advance President Trump’s Day One executive orders and EPA’s “Powering the Great American Comeback,” will reconsider the previous administration’s rule tightening the Particulate Matter National Ambient Air Quality Standards (PM2.5 NAAQS).
Continue Reading EPA to Reconsider Previous Administration’s PM 2.5 NAAQS, Continuing its Deregulatory Push

On March 12, 2025, EPA Administrator Zeldin announced that the agency will undertake 31 deregulatory actions to advance President Trump’s Day One executive orders and EPA’s “Powering the Great American Comeback.”
Continue Reading EPA Announces 31 Historic Actions Publicized as “Greatest Day of Deregulation Our Nation Has Seen”

On March 12, 2025, EPA and the Army Corps of Engineers issued a joint memorandum providing guidance to field staff on implementing the definition of “waters of the United States” (WOTUS) as it pertains to “adjacent wetlands.”
Continue Reading EPA and Army Corps Issue New Guidance for Implementing WOTUS Definition under Supreme Court’s Sackett Decision

On February 6, 2025, the Trump Administration announced the appointment of Scott Mason IV as regional EPA Administrator for Region 6. Headquartered in Dallas, Texas, Region 6 covers Arkansas, Louisiana, New Mexico, Oklahoma, Texas, and 66 Tribal Nations
Continue Reading President Trump Appoints Scott Mason IV as Region 6 EPA Administrator

On January 29, 2025, the Senate voted to confirm former New York Rep. Lee Zeldin as EPA Administrator. Zeldin is a 44-year-old attorney who represented New York’s 1st Congressional District from 2015-2023.
Continue Reading Senate Confirms Zeldin as EPA Administrator, President Trump’s EPA Begins to Take Shape