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  • Where can I download hourly emissions data from continuous monitoring?

    Hourly emissions data files are available from the Clean Air Markets Division of EPA, collected as part of 40 CFR Part 75. The download location has changed in February, 2023. The new location is https://campd.epa.gov/data/bulk-data-files . Once on this new site, use the menu (at the left) and the Keyword…

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  • Obtaining an RMP ID Number

    How can a facility subject to the Risk Management Plan (RMP) requirements obtain its RMP ID number? The owner or operator of a regulated RMP facility that has already submitted an RMP, may obtain the facility's identification number (RMP ID Number) by contacting the RMP Reporting Center (703-227-7650). An RMP-covered…

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  • Does EPA have enforcement authority for the risk management program regulations?

    Yes. Under §113 of the CAA, the Agency has the authority to bring administrative and judicial actions against violators. Judicial actions can be civil and criminal in nature. Section 113(a)(3) authorizes the Agency to order violators to comply with the risk management program regulations. Under section 113(b), the Agency may…

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  • Criteria for selecting stationary sources to audit

    What criteria will be used to select stationary sources for periodic compliance audits of risk management plans (RMPs) submitted under 40 CFR Part 68, Subpart G? The implementing agency will, according to the regulations at 40 CFR §68.220(b), select stationary sources for audits based on any of the following criteria…

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  • Is there a citizen suit provision applicable to RMP?

    Is there a citizen suit provision applicable to CAA §112 and the risk management program rule? Yes, section 304 of the CAA includes a citizen suit provision for violations of emission standards or limitations promulgated under the Act.

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  • Accessing RMP Data

    Is Risk Management Plan (RMP) data available to the public and, if so, where can it be found? Risk Management Plans (RMPs) prepared and submitted pursuant to CAA section 112(r) are, by statute, available to the public. Members of the general public may obtain RMP data by visiting a designated…

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  • How may state and local rules be more stringent?

    In what ways may state and local rules be more stringent? Does this document ( General Risk Management Program Guidance ) provide guidance on state and local differences? States and localities may impose more detailed requirements, such as requiring more documentation or more frequent reporting, specifying hours of training or…

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  • How complete are the data in the National Emissions Inventory?

    While the goal of the National Emissions Inventory (NEI) program is to include all emissions data, there are always challenges meeting this goal. The answer about completeness of coverage of sources depends on the emissions sector and pollutant. In general, the criteria air pollutants and precursors (CAPs) are expected to…

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  • Where is more information available about emissions estimation methods used by the EPA?

    For criteria air pollutants and precursors as well as for hazardous air pollutants, the methods are described in the technical support document (TSD) for the latest National Emissions Inventory (NEI) available from the main NEI page . For greenhouse gas emissions, you can find greenhouse gas inventory methods from the…

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  • Statutory authority and regulatory source for the risk management program

    What is the statutory authority and the regulatory source for the risk management program regulations that are codified in 40 CFR Part 68? The risk management program regulations were promulgated pursuant to the §112(r) accidental release prevention provisions of the Clean Air Act, as amended in 1990. The regulatory sources…

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  • RMP Information Center

    If I have additional questions regarding the RMP regulations, who can I contact via telephone for further assistance? You may contact the EPCRA, RMP & Oil Information Center, a publicly accessible service that provides up-to-date information on the regulatory requirements of the RMP program, including the applicability, program levels, off-site…

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  • How are emissions trends compiled?

    For criteria air pollutants and precursors, the emissions trends are based on the triennial National Emissions Inventory data, with some interim year data included for non-triennial years. The methods and interim-year approaches are described on the “Development of Data” tab included with the data provided on the Air Pollutant Emissions…

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  • How do I determine what SCCs have changed between inventory years?

    These are available in the EIS (Reporting Code table) or public website: https://sor-scc-api.epa.gov/sccwebservices/sccsearch/ Filter on “last inventory year” to remove SCCs no longer active. If this column has a date in it, then the SCC has been retired as of that date. The “last updated date” (column J) indicates when…

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  • Vulnerable Zone Determination

    Vulnerable zones are areas that could be affected by a release from a chemical accident at a facility subject to the risk management program requirements in 40 CFR Part 68. How can one determine if they live or work within a vulnerable zone? The Vulnerable Zone Indicator System (VZIS) allows…

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  • Where are the NAICS/ SIC and SCC codes changes that have been implemented for the 2017NEI?

    Please refer to the NEI webpage for 2017 documentation , and follow the link for Appendix 2 - 2017 NEI Plan Code Changes. That Excel file describes anticipated changes for the SCCs and NAICS and includes a helpful read me. I'll just note in the next NEI/EIS email that SCC…

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