EPA took interim final action to stay, for emissions sources in Arkansas, Kentucky, Louisiana, Mississippi, Missouri, and Texas only, the effectiveness of the federal implementation plan requirements established to address the "good neighbor" plan obligations of these and other states to mitigate interstate air pollution with respect to the 2015 ozone NAAQS.
EPA proposed to approve Kentucky's plan for maintaining attainment of the 2015 eight-hour ozone NAAQS in the Northern Kentucky portion of the Cincinnati, Ohio-Kentucky nonattainment area, to incorporate the maintenance plan into the SIP, and to redesignate the area to attainment.
EPA proposed to address the unreasonable risk of injury to human health presented by carbon tetrachloride under its conditions of use as documented in EPA’s 2020 Risk Evaluation for Carbon Tetrachloride and 2022 Revised Unreasonable Risk Determination for Carbon Tetrachloride pursuant to the TSCA.
SIP Proposal: California (updated transportation conformity procedures for the San Francisco Bay Area).
The federal agencies issued their semiannual regulatory agendas to update the public about regulations currently under development, reviews of existing regulations with small business impacts, and regulations completed or canceled since the last agenda. EPA’s agenda can be found at 88 FR 48598.
FWS proposed to list the Fluminense swallowtail, Harris’ mimic swallowtail, and Hahnel’s Amazonian swallowtail as endangered under the ESA.
SIP Approval: West Virginia (updates to incorporation by reference of NAAQS and associated monitoring reference and equivalent methods).
EPA seeks input on the Safer Choice and Design for the Environment programs’ potential expansion of their certification to new product categories.
EPA gave notice that Connecticut revised its approved Public Water System Supervision program to meet the requirements of the SDWA.
EPA announced the availability of and seeks comment on a draft revision to the risk determination for 1,4-dioxane following a risk evaluation issued under TSCA.