Combustion Portal: Environmental Compliance for Combustion Processes


Final Rule - e-Manifest Amendments
This rule amends certain aspects of the hazardous waste manifest regulations under the Resource Conservation and Recovery Act, specifically about the e-Manifest system.
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EPA Denies Alabama’s Coal Ash Permit Program Application
Following extensive engagement with Alabama and a robust review of its application, the agency is issuing a denial because the state’s permit program is significantly less protective of people and waterways than federal law requires.
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Toxic chemical releases have declined 21% in 10 years according to new Toxics Release Inventory data
EPA released its 2022 Toxics Release Inventory (TRI) National Analysis showing that environmental releases of TRI chemicals from facilities covered by the program were 21% lower in 2022 compared to 2013.
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EPA Launches New Website to Improve Transparency in Permitting
The new site centralizes information about all EPA permitting programs, information on delegations of authority to states and descriptions of other requirements that are often applicable (such as Endangered Species Act and National Historic Preservation Act consultation).
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Welcome to the Combustion Portal

This website provides federal and state compliance information and sustainability content for various combustion processes that are impacted by federal and state regulations.

Please note that facilities may be covered by both state and federal rules, and the fact that a facility has complied with all existing state regulations does not eliminate the requirement of complying with new or additional federal regulations.

The following topics are covered within The Combustion Portal:

  • Boilers. Boilers and process heaters are used by heavy industry (e.g., paper products, chemical, food, and petroleum industries) to run processes or machinery or to produce heat or electricity and by commercial facilities and institutions to supply steam for hot water, electricity and/or space heating.

  • Incinerators. Various types of incinerators are used by different sectors to reduce the volume of solid waste going to landfills. In general there are municipal solid waste incinerators, industrial/commercial incinerators, small institutional incinerators, hospital/medical/infectious waste incinerators and sewage sludge incinerators.

  • Stationary Reciprocating Internal Combustion Engines (RICE). These engines are in use throughout the U.S. In general industry, these engines provide shaft power to drive process equipment, compressors, pumps, standby generator sets and other machinery. In agricultural they are used to drive irrigation pumps. They also find wide application in municipal water supply, wastewater treatment and in commercial and institutional emergency power generation.

  • Wood Heating Appliances/Other. The design and/or use of certain wood burning appliances are regulated by federal, state and local regulations. Open burning is often restricted by local and state ordinances and rules.

This web portal was developed and is maintained by the National Center for Manufacturing Sciences under the National Compliance Assistance Centers program. Funding for this project has been provided by the U.S. Environmental Protection Agency. For more information, or to pass along suggestions, please contact: Lisa Stobierski, Administrative Director, or Matthew Cooke, EPA Compliance Policy Staff.


EPA is Researching the Characterization and Mitigation of Combustion Sources. This work will provide support for air quality regulation and policy determinations and to understand the effect of combustion emissions on public health and environmental welfare (more information). 

NCMS   Compliance Assistance Centers EPA