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Air Plan Approval; Texas; Clean Air Act Requirements for Enhanced Vehicle Inspection and Maintenance and Nonattainment New Source Review
Pursuant to the Federal Clean Air Act (CAA or the Act), the Environmental Protection Agency (EPA) is proposing to approve portions of two State Implementation Plan (SIP) revisions submitted by the State of Texas for the 2008 8-hour ozone National Ambient Air Quality Standard (NAAQS). The SIP revisions proposed for approval describe how CAA...
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Air Plan Approval; Pennsylvania; 1997 8-Hour Ozone National Ambient Air Quality Standard Second Maintenance Plan for the Youngstown-Warren-Sharon Area; Reopening of Comment Period
The Environmental Protection Agency (EPA) is reopening the comment period for a proposed rulemaking published in the Federal Register on October 30, 2020. EPA is reopening the comment period based on a request for a 15-day extension.
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Air Plan Approval; Wisconsin; Large Municipal Waste Combustors Negative Declaration Withdrawal for Designated Facilities and Pollutants
The Environmental Protection Agency (EPA) is proposing to approve Wisconsin's request for withdrawal of the previously approved Large Municipal Waste Combustors (LMWC) Negative Declaration. The Wisconsin Department of Natural Resources (WDNR) submitted its LMWC Negative Declaration withdrawal on September 25, 2020, certifying that the State of...
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Airworthiness Directives; Pratt & Whitney Canada Corp. Turboshaft Engines
The FAA proposes to adopt a new airworthiness directive (AD) for all Pratt & Whitney Canada Corp. (P&WC) PW210A and PW210S model turboshaft engines. This proposed AD was prompted by a report from the manufacturer that the Automated Damage Tracking System (ADTS) may under-count the number of cycles accrued by the impeller and the high- pressure...
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Airworthiness Directives; The Boeing Company Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 767-200, -300, -300F, and -400ER series airplanes. This proposed AD was prompted by significant changes made to the airworthiness limitations (AWLs) related to fuel tank ignition prevention and the nitrogen generation system. This proposed AD would...
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Airworthiness Directives; Airbus Helicopters (Type Certificate Previously Held by Eurocopter France) Helicopters
The FAA proposes to supersede Airworthiness Directive (AD) 2010-16-51, which applies to certain Eurocopter France (now Airbus Helicopters (Airbus)) Model SA330J helicopters. AD 2010-16-51 requires inspecting for a gap between the main gearbox (MGB) oil cooling fan assembly (fan) rotor blade and the upper section of the guide vane bearing housing...
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Airworthiness Directives; Airbus Helicopters
The FAA proposes to supersede Airworthiness Directive (AD) 2019-03-12, which applies to certain Airbus Helicopters Model EC225LP helicopters. AD 2019-03-12 requires repetitively inspecting, cleaning, and lubricating each life raft inflation cylinder percussion system bellcrank (bellcrank). Since the FAA issued AD 2019-03-12, the FAA determined...
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Airworthiness Directives; Safran Helicopter Engines, S.A. (Type Certificate Previously Held by Turbomeca, S.A.) Turboshaft Engines
The FAA proposes to adopt a new airworthiness directive (AD) for all Safran Helicopter Engines, S.A. Arriel 2C and Arriel 2S1 model turboshaft engines. This proposed AD was prompted by reports of error messages on the full authority digital engine control (FADEC) B digital engine control unit (DECU), caused by blistering of the varnish on the...
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Airworthiness Directives; Airbus SAS Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus SAS Model A350-941 and -1041 airplanes. This proposed AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This proposed AD would require revising the existing maintenance or inspection program, as applicable, to...
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Airworthiness Directives; Bombardier, Inc., Airplanes
The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-100-1A10 airplanes. This proposed AD was prompted by a report that the inboard multi-function spoiler (MFS) surfaces failed to deploy, which was caused by missing notches on the piston seal of the MFS power control units (PCUs). This proposed AD...
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Airworthiness Directives; General Electric Company Turbofan Engines
The FAA proposes to adopt a new airworthiness directive (AD) for certain General Electric Company (GE) GEnx-2B67, GEnx-2B67/P, and GEnx-2B67B model turbofan engines. This proposed AD was prompted by a report of a crack in the lower fuel manifold causing fuel leakage. This proposed AD would require an ultrasonic inspection (USI) or a fluorescent...
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Approval of the Tribal Implementation Plan for the Northern Cheyenne Tribe
The Environmental Protection Agency (EPA) is proposing to approve a Tribal Implementation Plan (TIP) submitted by the Northern Cheyenne Tribe (Tribe) on September 25, 2017, to regulate air pollution within the exterior boundaries of the Tribe's Northern Cheyenne Indian Reservation and four tribal trust parcels (collectively, the Reservation)....
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Approval and Promulgation of Implementation Plans; Utah; R307-204 Emission Standards: Smoke Management
EPA is proposing to approve a State Implementation Plan (SIP) revision package submitted by the State of Utah on November 5, 2019. The November 5, 2019 revision amends R307-204 to meet the requirements set forth in Utah's 2019 House Bill (H.B.) 155. This action is being taken under section 110 of the Clean Air Act (CAA).
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Air Plan Approval; Illinois; Public Participation in the Permit Program
The Environmental Protection Agency (EPA) is proposing to approve revisions to the Illinois State Implementation Plan (SIP) that were submitted on August 27, 2020 by the Illinois Environmental Protection Agency (IEPA). These revisions affect the public notice rule provisions for the New Source Review (NSR) and title V Operating Permit programs...
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Air Plan Limited Approval, Limited Disapproval; Arizona; Arizona Department of Environmental Quality
The Environmental Protection Agency (EPA) is proposing a limited approval and limited disapproval of a portion of a state implementation plan (SIP) submission made by the State of Arizona to address Moderate area nonattainment plan requirements for purposes of the 1987 24-hour national ambient air quality standards (NAAQS) for particulate matter...
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Air Plan Approval; California; Yolo-Solano Air Quality Management District; Graphic Arts Printing Operations
The Environmental Protection Agency (EPA) is proposing to approve a revision to the Yolo-Solano Air Quality Management District (YSAQMD) portion of the California State Implementation Plan (SIP). This revision concerns emissions of volatile organic compounds (VOCs) from graphic arts printing operations. We are proposing to approve a local rule...
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Approval and Promulgation of Implementation Plans; New York; Ozone Season NOX
The Environmental Protection Agency (EPA) is proposing to approve a revision to the New York State Implementation Plan (SIP) for ozone concerning the control of oxides of nitrogen (NO<INF>X</INF>). The EPA is proposing to approve a SIP revision of a New York regulation that lowers allowable NO<INF>X</INF> emissions from simple cycle and...
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Air Plan Approval; Ohio; NSR Program Administrative Rules
The Environmental Protection Agency (EPA) is proposing to approve, under the Clean Air Act (CAA), new and updated administrative rules for the Ohio State Implementation Plan (SIP) for the New Source Review (NSR) permitting program. The new and amended administrative rules in the Ohio Administrative Code (OAC) would replace the currently...
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Approval and Promulgation of Implementation Plans; State of Utah; Logan, Utah-Idaho PM2.5
The Environmental Protection Agency (EPA) is proposing to approve the request by the State of Utah to redesignate the Logan, Utah-Idaho (UT-ID) nonattainment area (NAA) (``Logan NAA'') to attainment status for particulate matter with an aerodynamic diameter less than or equal to a nominal 2.5 microns (PM<INF>2.5</INF>), and to approve related...
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Fisheries of the Exclusive Economic Zone Off Alaska; Removing the Processing Restriction on Incidentally Caught Squids and Sculpins in the Gulf of Alaska and the Bering Sea and Aleutian Islands Groundfish Fisheries
NMFS issues this proposed rule to remove the regulatory restriction that limits processing of squids and sculpins to fishmeal only. This proposed rule is necessary to allow the processing and sale of squids and sculpins as products other than fishmeal and thereby to help prevent waste of the incidental catch of these ecosystem component species....