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  • Can a containment wall be constructed out of concrete blocks?

    Yes. SPCC regulations do not mandate design specifications, rather, they are performance based. Therefore, a containment wall may be of any construction type, material, or design, assuming it meets the performance standards and requirements of Part 112. Regional offices can help determine whether individual containment equipment meets the performance standards…

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  • Qualifying criterion for qualified oil-filled operational equipment

    What is the qualifying criterion for the option for qualified oil-filled operational equipment? Equipment is eligible if the facility did not discharge from any oil-filled operational equipment (1) more than 1,000 U.S. gallons of oil in a single discharge to navigable waters, or (2) discharge more than 42 U.S. gallons…

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  • Are facilities required to use the option for qualified oil-filled operational equipment?

    No. This is an alternative way to comply with the SPCC requirements. An owner or operator can choose to comply with the general requirements to provide secondary containment for each piece of oil-filled operational equipment.

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  • What is included in the written commitment of resources?

    Instead of providing secondary containment for qualified oil-filled operational equipment, an owner or operator may prepare an oil spill contingency plan and a written commitment of manpower, equipment, and materials to quickly control and remove discharged oil. He/she must also have an inspection or monitoring program for the equipment to…

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  • Secondary containment for each container under SPCC

    Pursuant to 40 CFR §112.7(c) , facilities subject to the Spill Prevention, Control, and Countermeasure (SPCC) must provide containment or diversionary structures or equipment to prevent discharges as described in §112.1(b) . Additionally, facilities must construct all bulk storage container installations (except mobile refuelers) to provide a secondary means of…

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  • When could active containment measures be appropriate for mobile refuelers?

    Active containment measures require deployment or other specific action by the owner or operator. For discharges that occur only during manned activities, such as transfers, an active measure may be appropriate, as long as the measure can contain the volume and rate of oil, is properly constructed, and is deployed…

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  • What is the Meaning of the MOVESScenarioID Field? What Conditions Must User-Defined MOVESScenarioIDs Meet?

    See More Frequent Questions about MOVES and Related Models . The MOVESScenarioID is merely text that is used to label the output rows resulting from a MOVES rates run and is defined in the Scale Panel of the MOVES GUI. You can enter any text you like, as long as…

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  • How are the Number of Weekdays and Weekend Days in each Month Determined in MOVES?

    See More Frequent Questions about MOVES and Related Models . For any given month, MOVES assumes that 5 out of every 7 days in the month are ‘weekdays’ and 2 out of every 7 of days in the month are ‘weekend days.’ For example, MOVES assumes that January has (5/7)*31…

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  • What is Vehicle Specific Power (VSP)?

    See More Frequent Questions about MOVES and Related Models . It is an estimate of the power demand on the engine during driving. It is calculated using the second-by-second speed values in a driving schedule, along with information about the type of vehicle being operated. The VSP is used by…

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