✈️New RNAV Routes T-492 and T-494 Established in Eastern US
This action establishes United States Area Navigation (RNAV) Routes T-492 and T-494 in the eastern United States. This action supports FAA Next Generation Air Transportation System (NextGen) efforts to provide a modern RNAV route structure to improve the safety and efficiency of the National Airspace System (NAS).
Learn More✈️FAA Proposes New Class E Airspace at Ekalaka Airport, MT
This action proposes to establish Class E airspace extending upward from 700 feet above the surface at Ekalaka Airport, Ekalaka, MT. This action would support the airport's transition from visual flight rules (VFR) to instrument flight rules (IFR) operations.
Learn More✈️RNAV Routes Q-190 and T-497 Proposal and VOR Amendments Overview
This action proposes to establish United States Area Navigation (RNAV) Routes Q-190 and T-497, and amend domestic Very High Frequency Omnidirectional Range (VOR) Federal Airways V-1, V-70, and V- 194 in the eastern United States. The FAA is taking this action due to the planned decommissioning of the Cofield, NC (CVI), VOR/Tactical Air Navigation (VORTAC). This action is in support of the FAA's VOR Minimum Operational Network (MON) Program.
Learn More🚁FAA Proposes New Airworthiness Directive for Airbus Helicopters
The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus Helicopters Deutschland GmbH (AHD) Model MBB-BK 117 D-3 helicopters. This proposed AD was prompted by reports of momentary direct current (DC) power interruption in flight of both essential busses. This proposed AD would require revising the existing rotorcraft flight manual (RFM) for your helicopter, as specified in a European Union Aviation Safety Agency (EASA) AD, which is proposed for incorporation by reference. The FAA is proposing this AD to address the unsafe condition on these products.
Learn More🚁FAA Proposes Airworthiness Directive for Airbus Helicopters
The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus Helicopters Model EC 130 B4 and EC 130 T2 helicopters. This proposed AD was prompted by a report of heavy damage on the fenestron due to the loss of the tail rotor (TR) blade, which broke at the TR hub tension-torsion bar (tension-torsion bar). This proposed AD would require inspecting the tension-torsion bar and, depending on the inspection results, taking corrective actions. This proposed AD would also prohibit performing maintenance using certain maintenance manuals. These proposed actions are specified in a European Union Aviation Safety Agency (EASA) AD, which is proposed for incorporation by reference. The FAA is proposing this AD to address the unsafe condition on these products.
Learn More🌬️EPA Approves Alabama Air Quality Regulation Changes
The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision submitted by the State of Alabama, through the Alabama Department of Environmental Management (ADEM) on December 20, 2023. The revision modifies the State's air quality regulations as incorporated into the SIP by changing the definition of "volatile organic compounds" (VOC) to be consistent with federal regulations. The revision also addresses typographical errors and increases clarity and consistency with EPA's definitions and Alabama's Legislative Services Agency requirements.
Learn More🌬️EPA Approves Washington State SIP Revisions for Clean Air Compliance
The Environmental Protection Agency (EPA) is approving Washington State Implementation Plan (SIP) revisions to the Southwest Clean Air Agency (SWCAA) air quality regulations submitted by the State of Washington, through the Department of Ecology (Ecology) on June 22, 2023. The revisions were submitted in part to respond to the EPA's June 12, 2015 "SIP call" in which the EPA found a provision in the Washington SIP applicable in the area regulated by SWCAA to be substantially inadequate, providing affirmative defenses that operate to limit the jurisdiction of the Federal court in an enforcement action related to excess emissions during startup, shutdown, and malfunction (SSM) events. The EPA's approval of the SIP revisions to the substantially inadequate provision corrects the SWCAA deficiency identified in the 2015 SSM SIP call and the EPA's January 2022 finding of failure to submit. Washington withdrew some portions of the revisions submitted that were not identified in the 2015 SSM SIP call and therefore the EPA is not approving those withdrawn portions. The EPA proposed to approve this action on December 10, 2024, and received no comments.
Learn More🌬️Colorado Air Quality Plan Approval for Ozone Standards
The Environmental Protection Agency (EPA) is proposing to approve state implementation plan (SIP) submittals under the Clean Air Act (CAA) that address contingency measures requirements for the 2008 ozone National Ambient Air Quality Standards (NAAQS) for the Denver Metro/North Front Range (DMNFR) ozone nonattainment area. The requirements at issue relate to the area's previous Serious nonattainment classification. The EPA is proposing to find that the State has met the applicable CAA requirements for Serious area contingency measures and is proposing approval of the contingency measures SIP submittals, except that we are not taking action on one of the two identified contingency measures included in the submittals. In addition, the EPA is proposing to approve regulatory revisions that Colorado adopted to implement the submitted motor vehicle coating contingency measure. The EPA is taking this action pursuant to the CAA.
Learn More🌫️Proposed Sulfur Dioxide Regulations for Cabot Corporation in Louisiana
The Environmental Protection Agency (EPA) is proposing to approve Louisiana's State Implementation Plan (SIP) revision submitted to EPA on April 2, 2025, for the Evangeline Parish 2010 1-hour sulfur dioxide (SO<INF>2</INF>) primary national ambient air quality standard (NAAQS) nonattainment area. EPA is proposing 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🌬️Proposed Rule for Emissions Control in Missouri Petroleum Sector
The Environmental Protection Agency (EPA) is proposing to approve revisions to the Missouri State Implementation Plan (SIP) related to the control of emissions during petroleum liquid storage, loading and transfer in the Kansas City metropolitan area. The revisions to this rule 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 proposed approval of this rule revision is being done in accordance with the requirements of the Clean Air Act (CAA).
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