Learn the Issues
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Engaging Tribal communities on the Bristol Bay Assessment
EPA's engagement with Tribal governments as part of its Bristol Bay Assessment.
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Public involvement for the 2014 Bristol Bay 404c process
Public involvement activities associated with EPA's 2014 Proposed Determination to protect Bristol Bay watershed.
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Transportation Conformity
This section provides information on: current laws, regulations and guidance, policy and technical guidance, project-level conformity, general information, contacts and training, adequacy review of SIP submissions
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2001 Limited Maintenance Plan for moderate PM10 and Attachment A
These documents provide guidance on maintenance plan submissions for certain moderate particulate matter (PM10) seeking redesignation to attainment.
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Clarification of Transportation Conformity Requirements for FHWA/FTA Projects Requiring Environmental Impact Statements
This document clarifies how full compliance with the Clean Air Act transportation conformity requirements is to be achieved for FHWA and FTA projects requiring environmental impact statements (EIS).
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Improving Air Quality Through Land Use Activities Announcement
This document provides guidance on where to find more information regarding improving air quality through land use activities.
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EPA-DOT Memorandum of Understanding (MOU)
National Memorandum of Understanding Between the U.S. Department of Transportation and the U.S. Environmental Protection Agency (EPA Publication #EPA-420-F-00-020 and EPA-DOT Memorandum of Understanding (MOU) on Transportation Conformity.
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1995 Limited Maintenance Plan for nonclassifiable CO Nonattainment Areas
These documents provide guidance on maintenance plan submissions for certain moderate particulate matter (PM10) seeking redesignation to attainment.
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Guidance on Applicable Methodologies to Account for the Benefits of Infill in SIPs and Conformity Determinations
This document provides guidance regarding the use of the methodologies from ""Comparing Methodologies"" in preparing state implementation plans (SIP's) and transportation conformity determinations.
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A Matrix of EPA Guidance Documents for Developing and Quantifying Control Measures
This document provides a list of EPA guidance documents for developing and quantifying control measures.
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Frequent questions about the Bristol Bay Clean Water Act 404c process
Frequently asked questions about EPA's Bristol Bay Clean Water Act 404(c) Process.
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Hot Topics in Vermont
Important topics of public interest in the state of Vermont.
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Hot Topics in Rhode Island
Important topics of public interest in the state of Rhode Island.
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Hot Topics in Massachusetts
Important topics of public interest in the state of Massachusetts.
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Hot Topics in Maine
Important topics of public interest in the state of Maine.
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Hot Topics in New Hampshire
Important topics of public interest in the state of New Hampshire.
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EPA's Bristol Bay Assessment
EPA's scientific assessment of the potential impact of large-scale mining operations on the Bristol Bay watershed ecosystem.
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Frequent questions about EPA's Bristol Bay Assessment
Frequently asked questions about EPA's Bristol Bay Assessment. This information is no longer updated but may be useful as a reference or resource.
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Final National Level Listed Species Biological Evaluation for Methomyl
EPA has drafted Biological Evaluations (BEs) for two additional pilot chemicals: carbaryl, and methomyl. The draft BEs are based on interim methods developed in conjunction with FWS, NMFS and USDA in response to the National Academy of Science report.