USEPAFR-2026-16510NewsIn force

Determination of Attainment by the Attainment Date and Clean Data Determination for the 2012 Annual Fine Particulate Standard; Plumas County, California

The Environmental Protection Agency (EPA) is finalizing our determination that the Portola nonattainment area in Plumas County, California, attained the 2012 annual fine particulate matter ("PM<INF>2.5</INF>") national ambient air quality standard (NAAQS or "standard") by the December 31, 2025 "Serious" area attainment date. This determination is based on ambient air quality monitoring data from 2023 through 2025. We are also finalizing a clean data determination (CDD) based on the 2023 through 2025 data and our evaluation of preliminary air quality monitoring data from 2026.

Last changed 1 week ago.

Extracted view for reading · Original for compliance evidence

Source

https://www.federalregister.gov/documents/2026/08/13/2026-16510/determination-of-attainment-by-the-attainment-date-and-clean-data-determination-for-the-2012-annual

Canonical document at the regulator. Always cite this URL — not the Vantage detail page — in compliance evidence.

Related in United States

USEPAFR-2026-16990NewsIn force

Air Plan Approval; SC; Department Name Change

The U.S. Environmental Protection Agency (EPA or Agency) is approving a State Implementation Plan (SIP) revision submitted by the State of South Carolina on July 23, 2025. The revision updates references to reflect the restructuring of South Carolina Department of Health and Environmental Control (DHEC) to the South Carolina Department of Public Health and the South Carolina Department of Environmental Services (DES).

1 day ago

USEPAFR-2026-16989NewsIn force

Air Plan Approval; Arizona; Attainment Plan for the Hayden SO2 Nonattainment Area for the 1971 and 2010 Sulfur Dioxide National Ambient Air Quality Standards

The Environmental Protection Agency (EPA) is finalizing approval of revisions to the Arizona state implementation plan (SIP) for attaining the 1971 and 2010 sulfur dioxide (SO<INF>2</INF>) national ambient air quality standards (NAAQS or "standards") in the Hayden SO<INF>2</INF> nonattainment area. These SIP revisions, collectively referred to as the "Hayden SO<INF>2</INF> Plan" or "Plan," include Arizona's attainment demonstration and other elements required under Clean Air Act (CAA or "Act") sections 110, 172, 191, and 192. In addition to an attainment demonstration, the revisions address the requirements for meeting reasonable further progress (RFP) toward attainment of the NAAQS, reasonably available control measures and reasonably available control technology (RACM/RACT), base-year and projection-year emissions inventories, nonattainment new source review, emissions limitations necessary to provide for attainment, and contingency measures. The EPA is approving the SIP revisions as meeting the CAA requirements. This action is being taken under the CAA.

1 day ago

USEPAFR-2026-16988NewsIn force

Deletion From the National Priorities List

The Environmental Protection Agency (EPA) announces the deletion of six sites and the partial deletion of two sites, from the Superfund National Priorities List (NPL). The NPL, created under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) of 1980, as amended, is an appendix of the National Oil and Hazardous Substances Pollution Contingency Plan (NCP). In accordance with the NCP, sites may be deleted from the NPL where no further response is appropriate. The EPA and the applicable states, through their designated state agency, have determined that all appropriate response actions under CERCLA have been completed. However, this deletion does not preclude future actions under Superfund.

1 day ago

USEPAFR-2026-16986NewsIn force

Air Plan Approval; Wisconsin; Moderate Attainment Plan Elements for Wisconsin's 2015 Ozone Standard Areas

The U.S. Environmental Protection Agency (EPA) is approving portions of Wisconsin's 2015 ozone National Ambient Air Quality Standard (NAAQS or standard) Moderate nonattainment area State Implementation Plan (SIP) submission for the Wisconsin portion of the Chicago, Illinois-Indiana-Wisconsin area (Kenosha County), the Milwaukee, Wisconsin area, and the Sheboygan County, Wisconsin area. The elements of the Moderate SIP submissions include the reasonable further progress (RFP) demonstration and the associated motor vehicle emissions budgets (Budgets) for 2023, the motor vehicle inspection and maintenance (I/M) program, and the nonattainment new source review (NNSR) program. The EPA is also approving the base year emissions inventory as satisfying previous Marginal area requirements for these areas. The EPA is finding adequate and approving the Budgets for these areas. The EPA proposed to approve this action on April 2, 2026, and received no adverse comments.

1 day ago

USEPAFR-2026-16976NewsIn force

Receipt of Pesticide Petitions Filed for Residues of Pesticide Chemicals in or on Various Commodities-June 2026

This document announces the Agency's receipt of and solicits public comment on initial filings of pesticide petitions requesting the establishment or modification of regulations for residues of pesticide chemicals in or on various commodities. The Agency is providing this notice in accordance with the Federal Food, Drug, and Cosmetic Act (FFDCA). EPA uses the month and year in the title to identify when the Agency compiled the petitions identified in this notice of filing Unit II. of this document identifies certain petitions received in 2024, 2025, and 2026 that are currently being evaluated by EPA, along with information about each petition, including who submitted the petition and the requested action.

1 day ago