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  • Did the Risk Management Program final rule affect the List Rule?

    Did the Risk Management Program final rule ( 61 FR 31668 ; June 20, 1996) change or affect the January 31, 1994, List of Regulated Substances and Threshold Quantities final rule (59 FR 4478; January 31, 1994)? No. The Risk Management Program final rule did not alter the 1994 "List…

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  • For toxic endpoints, are milligrams per liter (mg / L) equivalent to parts per million (ppm)?

    The endpoint concentrations for regulated toxic substances under the risk management program rule (40 CFR Part 68 Appendix A) are listed in units of milligrams per liter (mg/L). Is this equivalent to parts per million (ppm)? No, mg/L is not always equivalent to ppm. Whereas ppm is a volume-to-volume or…

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  • Do quantities in co-located vessels have to be aggregated for worst-case release scenarios?

    Pursuant to the risk management program (RMP) regulations, a facility owner or operator must conduct an off-site consequence analysis that includes modeling of a worst-case release. If a single process is comprised of several co-located vessels, must the total quantity in all the vessels be aggregated to determine the worst-case…

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  • What is the general duty clause?

    What is the general duty clause under CAA §112(r)(1)? The CAA general duty clause directs owners and operators of stationary sources to identify hazards that may result from accidental releases, to design and maintain a safe facility, and to minimize the consequences of releases when they occur.

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  • Requesting RMP*eSubmit authorization code

    As the Certifying Official, how can I retrieve our lost Authorization Code needed by our new Preparer to access the facility’s Risk Management Plan (RMP) within RMP*eSubmit? The Certifying Official should contact the RMP Reporting Center (RMPRC@epacdx.net / 703-227-7650) to request the Authorization Code.

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  • What does "relief system design basis" mean?

    Relief systems include, but are not limited to, relief valves, relief headers, relief drums, and rupture disks. Design basis means documenting how the loads and sizes of the relief system, as well as inlet and outlet sizes, were determined. This includes a description of overpressure scenarios considered, the scenario that…

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  • Submittal Process when Claiming Confidential Business Information (CBI)

    Pursuant to the risk management program regulations, facilities may make a claim of confidential business information (CBI) unless otherwise stated in 40 CFR §68.151. How does a facility that is claiming CBI submit its RMP? For a facility to claim information as CBI, the facility must submit to EPA a…

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