Collections and Lists
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Harmful Algal Blooms (HABs) in Water Bodies
Technical, scientific, policy, regulatory, statutory, guidance and research information about cyanobacterial harmful algal blooms and cyanotoxins in drinking water and water bodies.
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Current Regulations and Regulatory Actions
This site will provide basic information on clean air permitting under the title V operating permits program, provide access to state and regional permitting programs, and maintain access to proposed and final regulatory requirements.
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EPA Approved Regulations in the Pennsylvania SIP
Pennsylvania SIP, Chapter 126, Section 126.401 thru 126-451
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Urban River: Merrimack River
Information on the efforts of the US EPA, the Commonwealth of Massachusetts, the municipalities within the Merrimack River and nongovernmental organizations to improve the water quality of the Merrimack River.
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Webform Field Elements
Webform elements, a.k.a., "field types," allow you to add capabilities to your web form. There are several field types available, and each field type can be customized to perform a specific task.
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EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the New Jersey SIP
This section sets forth the applicable State Implementation Plan (SIP) for New Jersey under section 110 of the Clean Air Act, as amended, 42 U.S.C. 7401 et seq., and 40 CFR part 51 to meet National Ambient Air Quality Standards.
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Current Louisiana SIP-Approved Regulations
Current Louisiana SIP-Approved Regulations
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Performance-Based Measurement System (PBMS) & Flexible Approach
Performance-Based Measurement System (PBMS) & Flexible Approach, Frequent Questions
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Featured Examples and Resources
Browse by topic page enabling users to click on links that go directly to community implementation examples and resource links.
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Red Hill in Focus Webinar Series - 2023 Administrative Consent Order (2023-06-13)
This webinar will provide an overview of the requirements included in the Red Hill 2023 Consent Order, revisions made in response to public input, and include a Q&A session about the Order and how it will impact defueling and closure.
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Mississippi River/Gulf of America Hypoxia Task Force
The Hypoxia Task Force is a collaborative state/federal partnership co-led by EPA to address nutrient pollution in the Mississippi-Atchafalaya River Basin and hypoxia in the Gulf of America.
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Federal Land Manager Notification of New Source Review Permit Applications in EPA's Pacific Southwest (Region 9)
In EPA's Pacific Southwest (Region 9), the Class 1 federal lands areas are designated as depicted in the map on this page. For more information, please visit the Region 9 Federal Class 1 Areas page.
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Substitutes in Sterilants
This page lists all substitutes in sterilants.
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Substitutes in Water Coolers
This page contains a searchable/filterable/sortable table of substitutes listed acceptable for use in water coolers.
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Substitutes in Very Low Temperature Refrigeration
This page contains a searchable/filterable/sortable table of substitutes listed acceptable for use in very low temperature refrigeration.
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Substitutes in Vending Machines
This page contains a searchable/filterable/sortable table of substitutes listed acceptable for use in vending machines.
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Substitutes in Typical Supermarket Systems
This page contains a searchable/filterable/sortable table of substitutes listed acceptable for supermarket.
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Substitutes in Remote Condensing Units
This page contains a searchable/filterable/sortable table of substitutes listed acceptable for condensing units.
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Substitutes in Refrigerated Food Processing and Dispensing Equipment
This page contains a searchable/filterable/sortable table of substitutes listed acceptable in refrigerated food processing and dispensing equipment
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Substitutes in Stand-alone Equipment
This page contains a searchable/filterable/sortable table of substitutes listed acceptable in stand-alone units (including reach-in/display cases, glass-door bottle coolers, ice cream freezers)