EPA determined that the Imperial County nonattainment area would have attained the 2015 ozone NAAQS by the attainment date, but for emissions emanating from outside the United States.

SIP Approval: New Jersey (revisions for the motor vehicle inspection and maintenance program).

EPA determined that the Nevada County (western part) and Ventura County areas in California attained the 2008 ozone NAAQS by the attainment date, and that six areas in California classified as marginal attained the 2015 ozone NAAQS by the attainment date.

SIP Proposal: California (base-year emissions inventory for the Imperial County 2012 fine particulate matter nonattainment area).

EPA granted final authorization to North Dakota for revisions to its hazardous waste management program under RCRA.

EPA proposed to grant final authorization to North Dakota for revisions to its hazardous waste management program under RCRA.

FWS announced 90-day findings on petitions to add four species to the lists of endangered and threatened wildlife and plants under the ESA; the agency found that petitions to list the southern population of bog turtle, Pedernales River Springs salamander, ghost orchid, and tall western penstemon may be warranted, and initiated status reviews of the species.

FWS announced that the agency is withdrawing its December 19, 2019, not-warranted 12-month finding for the north Oregon coast distinct population segment of red tree vole under the ESA, returning it to the candidate list and initiating a new status review.

EPA proposed an update to the requirements for outer continental shelf sources for which Maryland is the corresponding onshore area under the CAA.

EPA granted final authorization to Virginia for revisions to its hazardous waste management program under RCRA.