EPA announced the availability of the final revision to the risk determination for the trichloroethylene risk evaluation issued under TSCA.

EPA adjusted the level of the maximum (and minimum) statutory civil monetary penalty amounts under the statutes the Agency administers.

DOT announced the statutorily-prescribed 2023 adjustment to civil penalty amounts that may be imposed for violations of certain Department regulations.

NOAA administratively withdrew the amendatory instructions and associated regulatory text of the interim final rule published on May 13, 2022, that amended the National Marine Sanctuaries program regulations, replacing it with slightly revised amendatory instructions and regulatory text for a few provisions that were in the interim final rule.

EPA proposed amendments to NESHAPs for lime manufacturing plants addressing hazardous air pollutant emissions standards for hydrogen chloride, mercury, total hydrocarbon as a surrogate for organic hazardous air pollutants, and dioxin/furans.

EPA determined that the Las Vegas, Nevada nonattainment area failed to attain the 2015 ozone NAAQS by the applicable attainment date, resulting in reclassification by operation of law as “moderate” nonattainment for the 2015 ozone NAAQS and requiring the submission of SIP revisions and implementation of controls to satisfy the statutory and regulatory requirements for moderate areas for the 2015 ozone NAAQS.

SIP Approval: North Carolina (updates to incorporation by reference of federal new source review regulations and federal guidelines on air quality modeling, and revisions to PSD elements for the 2015 ozone NAAQS).

SIP Approval: Missouri (disapproval of revisions rescinding a regulation addressing sulfur compounds and replacing it with a new regulation establishing requirements for units emitting sulfur dioxide).

EPA announced a public comment period for the draft document titled, “Biofuels and the Environment: Third Triennial Report to Congress (External Review Draft).”

The Internal Revenue Service announced that a petition had been filed requesting that polyphenylene sulfide be added to the list of taxable substances under §4672(a) of the Internal Revenue Code.