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RACT/BACT/LAER Clearinghouse (RBLC) Related Resources

The following is a list of links to online air permitting and related reference resources.

Air and Waste Management Association - Non-profit professional organization that provides training, information, and networking opportunities to environmental professionals.

Air Pollution Control Cost Manual - U.S. EPA Office of State Air Partnerships (OSAP) manual which provides information on capital costs, operating and maintenance expenses, and other costs for air pollution control systems. It includes procedures for estimating and escalating these costs.

BAAQMD BACT Guidance Documents - Specifies the Best Available Control Technology (BACT) requirements for commonly permitted sources subject to New Source Review in the Bay Area Air Quality Management District (BAAQMD), California.

California Air Resources Board (CARB) BACT Determinations and Guidance Tools - Provides a searchable database of BACT requirements in permits and BACT guidelines issued by California Air Pollution Control Districts.

Clean Air Technology Center Air (CATC) Air Pollution Technical Reports - Contains technical reports which provide information on emissions and control technologies.

Clearinghouse for Inventories and Emissions Factors (CHIEF) - Contains the latest information on emission inventories and emissions factors, and provides access to the latest information and tools for estimating emissions of air pollutants and developing air emission inventories.

Code of Federal Regulations (CFR) - Provides a search engine for the CFR, for all regulations issued by agencies of the U.S Government.

Concurrent Technology Center (CTC)/National Defense Center for Energy and Environment (NDCEE) - National center that specializes in transferring environmental tools and technologies for the U.S. Department of War (DOW), other government organizations, and the industrial community.

Deepwater Ports - Provides information about NSR and title V air permitting of Deepwater Ports in the South Central United States.

Economics and Cost Analysis Support (ECAS) - Provides analyses of costs, benefits, and economic and regulatory impacts of air quality management strategies, programs, and regulations developed throughout the U.S. EPA Office of Air Quality Planning and Standards (OAQPS).

Facility Registry System (FRS) System Number Search - Provides a search engine to find FRS numbers for facilities based on their name, location and/or other criteria.

Geographical/Ecosystems Initiatives (GEI) - Provides information on geographically focused environmental activities which combine the resources of states, local governments, regulated communities, environmental groups, and citizens.

Institute of Clean Air Companies (ICAC)- National association of companies that supply air pollution monitoring and control systems, equipment, and services for stationary sources.

Landfill Gas Emissions Model (LANDGEM) (v 3.1, 2024) - Tool that assists landfill owners and operators as well as regulators to transparently standardize landfill gas generation calculations and predictions. 

Manufacturers of Environmental Controls Association (MECA) - National association for manufacturers of emission control equipment for automobiles, trucks, buses, off-road vehicles, and stationary sources.

National Association of Clean Air Agencies - Provides air pollution information on and generated by the national associations representing the mangers of state and local air pollution agencies in the U.S.

National Metal Finishing Resource Center - Provides environmental, technical, and pollution prevention information and resources for metal finishing.

New Source Review (NSR) - Provides information pertaining to EPA's New Source Review (NSR) preconstruction air permitting program.

North American Industry Classification System (NAICS) - Primary U.S. Census Bureau Web page for information on the North American Industry Classification System (NAICS). The NAICS was developed under the North American Free Trade Agreement (NAFTA) and is the industry classification system used by the statistical agencies of the United States, Mexico and Canada.

Outer Continental Shelf Air Permitting - Provides information about the Outer Continental Shelf (OCS) air permitting program.

SCAQMD BACT Guidance Documents - Provides information on Best Available Control Technology (BACT), and any current developments in the process of updating BACT Guidelines, for the South Coast Air Quality Management District (SCAQMD) in California.

Support Center for Regulatory Models (SCRAM) - Provides information on atmospheric dispersion (air quality) models that support regulatory programs required by the Clean Air Act.

TANKS (v 2.06, 2009) - Browser-based application that estimates volatile organic compound (VOC) and hazardous air pollutant (HAP) emissions from fixed- and floating-roof storage tanks.

Technical Air Pollution Resources - Provides information about many areas of air pollution science, technology, regulation, measurement, and prevention.

Title V Operating Permits - Provides information pertaining to EPA's operating permits program.

Tribal Minor New Source Review (NSR) - Provides information about the Minor NSR preconstruction permitting program in Indian country.

U.S. Postal Service Zip Code Look-Up - Provides a tool to look up postal (ZIP) codes in the U.S. by address, city and state. 

Clean Air Technology Center

  • About the CATC
  • CATC Products and Resources
    • RACT/BACT/LAER Clearinghouse (RBLC)
    • RBLC Related Resources
  • U.S. - Mexico Border Information Center on Air Pollution (CICA)
Contact Us about the Clean Air Technology Center and the RACT/BACT/LAER Clearinghouse
Contact Us about the Clean Air Technology Center and the RACT/BACT/LAER Clearinghouse to ask a question, provide feedback, or report a problem.
Last updated on June 22, 2026
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