🌫️EPA Proposes Ozone Standards Failure for San Joaquin Valley
The Environmental Protection Agency (EPA) is proposing to determine that the San Joaquin Valley, California area failed to attain the 1997 8-hour ozone national ambient air quality standard by its June 15, 2024 "Extreme" area attainment date. This proposed determination is based on quality-assured and certified ambient air quality monitoring data from 2021 through 2023.
Learn More✈️FAA Airworthiness Directive for Airbus A350
The FAA is adopting a new airworthiness directive (AD) for all Airbus SAS Model A350-941 and -1041 airplanes. This AD was prompted by a report of loss of control of an outboard aileron surface due to hydraulic fluid contaminating an electronic card of the flight control remote module (FCRM). This AD requires replacing any affected elevator FCRM and prohibits installing aileron or spoiler FCRMs in place of elevator or rudder FCRMs. This AD also limits the installation of FCRMs under certain conditions. The FAA is issuing this AD to address the unsafe condition on these products.
Learn More✈️New Airworthiness Directive for Airbus A350
The FAA is adopting a new airworthiness directive (AD) for all Airbus SAS Model A350-941 and -1041 airplanes. This AD was prompted by a design review that identified a potential thrust asymmetry condition during derated takeoff operations under certain conditions. This AD requires revising the existing airplane flight manual (AFM) to provide the flightcrew with procedures for derated takeoff limitations. The FAA is issuing this AD to address the unsafe condition on these products.
Learn More🌍Louisiana SIP Revision Approved for Sulfur Dioxide Compliance
The Environmental Protection Agency (EPA) is approving the State Implementation Plan (SIP) revision which Louisiana submitted to EPA on April 2, 2025, for attaining the Evangeline Parish 2010 1-hour sulfur dioxide (SO<INF>2</INF>) primary national ambient air quality standard (NAAQS) nonattainment area. EPA is finalizing approval of the following Clean Air Act (CAA) SIP elements: The attainment demonstration for the SO<INF>2</INF> NAAQS, which includes an Agreed Order on Consent (AOC) for the Cabot Corporation's Ville Platte Plant (Cabot) facility; the reasonable further progress (RFP) plan; the reasonably available control measures (RACM) and reasonably available control technology (RACT) demonstration; the emission inventories; and the contingency measures. The State has demonstrated that its current Nonattainment New Source Review (NNSR) program covers this NAAQS; therefore, no revision to the SIP is required for the NNSR element.
Learn More🌬️Mojave Desert Air Quality Regulation and Its Business Implications
The Environmental Protection Agency (EPA) is proposing to approve revisions to the Mojave Desert Air Quality Management District (MDAQMD or "the District") portion of the California State Implementation Plan (SIP). These revisions concern definitions that are necessary to implement and enforce local rules that regulate air pollution. We are proposing to approve a definitions rule under the Clean Air Act (CAA or the "Act"). We are also proposing to approve the rescission of earlier versions of this rule from the California SIP as they are no longer needed to under the CAA. We are taking comments on this proposal and plan to follow with a final action.
Learn More🌿EPA Approves Missouri SIP Revisions for Petroleum Emission Controls
The Environmental Protection Agency (EPA) is taking final action to approve revisions to the State Implementation Plan (SIP) for the State of Missouri related to the control of emissions during petroleum liquid storage, loading and transfer in the Kansas City metropolitan area. The revisions include adding incorporations by reference to other state rules, adding definitions specific to the rule, revising unnecessarily restrictive or duplicative language, and making administrative wording changes. These revisions do not impact the stringency of the SIP or have an adverse effect on air quality. The EPA's final approval of this rule revision is being done in accordance with the requirements of the Clean Air Act (CAA).
Learn More✈️Establishment of Class E Airspace at Ekalaka Airport, MT
This action establishes Class E airspace extending upward from 700 feet above the surface of the earth at Ekalaka Airport, Ekalaka, MT. This action supports the safety and management of instrument flight rules (IFR) operations at the airport.
Learn More🏠Restore Dust-Lead Hazard Standards
The Environmental Protection Agency (EPA or the Agency) is correcting a final rule that appeared in the Federal Register of November 12, 2024, that finalized several revisions to EPA's lead-based paint (LBP) regulations. Subsequent to publication, the Office of the Federal Register (OFR) informed the Agency that there were errors in the amendatory instructions that describe specific revisions for two sections of the regulation. In the Federal Register of December 16, 2024, EPA published a technical correction to the final rule that explained the errors and the corresponding technical corrections that the Agency believed would address the errors identified by the OFR. Unfortunately, that technical correction did not fix the amendatory instructions prior to the effective date of the final rule. As a result, when the final rule became effective on January 13, 2025, three subparagraphs of regulatory text were inadvertently deleted--a change to the post-abatement regulatory activities that EPA did not intend to make. This action corrects that error by restoring the inadvertently deleted text in the regulations.
Learn More✈️Proposed Airworthiness Directive for Boeing 757 Aircraft by FAA
The FAA proposes to adopt a new airworthiness directive (AD) for all The Boeing Company (Boeing) Model 757-200, -200PF, and -200CB series airplanes. This proposed AD was prompted by a report of improper grinding of the inner diameter of the main landing gear (MLG) outer cylinders, resulting in possible heat damage to the outer cylinders. This proposed AD would require a records check or inspection to determine if an affected outer cylinder is installed and replacing all affected outer cylinders. The FAA is proposing this AD to address the unsafe condition on these products.
Learn More✈️New Airworthiness Directive for Boeing 737
The FAA proposes to adopt a new airworthiness directive (AD) for all The Boeing Company (Boeing) Model 737-600, -700, -700C, -800, - 900, and -900ER series airplanes. This proposed AD was prompted by a report of improper grinding of the inner diameter of the main landing gear (MLG) outer cylinders, resulting in possible heat damage to the outer cylinders. This proposed AD would require a records check or inspection to determine if an affected outer cylinder is installed and replacing all affected outer cylinders. The FAA is proposing this AD to address the unsafe condition on these products.
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