Laws & Regulations
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EPA's Key Management Challenges - 2012
We are pleased to provide you with a list of areas the Office of lnspector General considers as key management challenges confronting the U.S. Environmental Protection Agency.
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EPA's Key Management Challenges - 2011
We are pleased to provide you with a list of areas the Office of lnspector General considers as key management challenges confronting the U.S. Environmental Protection Agency.
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EPA's Key Management Challenges - 2010
We are pleased to provide you with a list of areas the Office of lnspector General considers as key management challenges confronting the U.S. Environmental Protection Agency.
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EPA's Key Management Challenges - 2009
We are pleased to provide you with a list of areas the Office of lnspector General considers as key management challenges confronting the U.S. Environmental Protection Agency.
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EPA's Key Management Challenges - 2008
We are pleased to provide you with a list of areas the Office of lnspector General considers as key management challenges confronting the U.S. Environmental Protection Agency.
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EPA's Key Management Challenges - 2007
We are pleased to provide you with a list of areas the Office of lnspector General considers as key management challenges confronting the U.S. Environmental Protection Agency.
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EPA's Key Management Challenges - 2006
We are pleased to provide you with a list of areas the Office of lnspector General considers as key management challenges confronting the U.S. Environmental Protection Agency.
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Primary Sulfur Dioxide NAAQS Implementation Schedule
The effective date for the primary sulfur dioxide (SO2) National Ambient Air Quality Standard (NAAQS) established in 2012, is followed by designations of nonattainment areas and subsequently required state implementation plans (SIPs).
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EPA's Key Management Challenges - 2005
We are pleased to provide you with a list of areas the Office of lnspector General considers as key management challenges confronting the U.S. Environmental Protection Agency.
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EPA's Key Management Challenges - 2004
We are pleased to provide you with a list of areas the Office of lnspector General considers as key management challenges confronting the U.S. Environmental Protection Agency.
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EPA's Key Management Challenges - 2003
We are pleased to provide you with a list of areas the Office of lnspector General considers as key management challenges confronting the U.S. Environmental Protection Agency.
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Tribes Names Service
A guide for new users to leverage the publicly available Tribes Names Service API to automatically maintain accurate and current tribal information like current tribal names, BIA codes, and EPA Internal Identifiers.
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The Navigable Waters Protection Rule - Supporting Documents
Economic Analysis and Resource Programmatic Assessment document links in support of the 2020 revised definition of "waters of the United States"
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Notice of Public Meetings Regarding “Waters of the United States”
Link to the pre-publication version of the Federal Register notice announcing public meetings on the intention to revise the definition of "waters of the United States."
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Proposed settlement agreement for the Former SCPC Facility, St. Croix, United States Virgin Islands
The U.S. Environmental Protection Agency (EPA) is seeking public review of and comment on its proposed settlement agreement with St. Croix Petrochemical Corporation (SCPC).
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Basic Information about Visibility
Visibility - Basic Information
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Introduction to Visibility
Report by William Malm, National Park Service and Colorodo State Institute for Research on the Atmosphere
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Slides for Webinar on the Draft Guidance Document for the Second Implementation Period of the Regional Haze Rule
Slides for Regional Haze Guidance Webinar
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Regional Haze Guidance Technical Support Document and Data File
Technical Support Documents for RH Guidance
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Texas SIP: 30 TAC 117.403: Exemptions, SIP effective April 22, 2026 (TXd253)
Texas SIP: 30 TAC 115.10