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  • What are the units of NEI emissions data?

    NEI emissions values represent total annual emissions for the inventory reporting year. Criteria air pollutants and precursors (CAPs) are reported in short tons per year , and hazardous air pollutants (HAPs) are reported in lbs per year .

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  • Leasing out empty oil storage containers.

    A facility leases out empty stationary tanks to other facilities that use the tanks to store oil (e.g., gasoline). The stationary tanks are empty while at the initial facility and eventually leased to other customers to be reused for oil storage. Is the facility that leases out the empty tanks…

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  • When is a mobile refueler subject to SPCC requirements?

    According to a 1971 Memorandum of Understanding between the Department of Transportation (DOT) and the Environmental Protection Agency, EPA regulates non-transportation-related facilities and DOT regulates transportation-related facilities: • Mobile refuelers that operate solely within the confines of a non-transportation-related facility subject to the SPCC rule must comply with the general…

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  • What milk and milk products are covered by the Milk and Milk Product Containers, Associated Piping and Appurtenances Exemption?

    The exemption will cover all containers, piping and appurtenances of milk and milk products. For example, milk products include cheeses, yogurts and ice cream. Additionally, transfers and milk handling associated with these containers and appurtenances are exempt from the SPCC requirements.

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  • What is the definition of VOC?

    There is a regulatory definition of VOC. It is found in 40 CFR 51.100. CFR - code of federal regulations. The definition relates to the intent and requirements of the Clean Air Act. Excerpt from “Volatile Organic Compounds” Definition per 40 CFR Part 51.100(s): " Volatile organic compounds (VOC) means…

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  • What does "NEC" stand for in the emissions sectors?

    NEC means “not elsewhere classified” and includes SCCs that are not assigned to any of the other specific industrial process sectors. If you look at the SCC code table available at the SCC web site and filter on the Sector name that includes “NEC”, you can see the type of…

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  • Does a product or substance have to create a sheen to be subject to SPCC?

    The SPCC general applicability in 40 CFR §112.1(b) refers to a discharge of oil in quantities that may be harmful, as described in Part 110. Part 110 is often referred to as the sheen rule. Does a product or substance have to create a sheen to be subject to SPCC…

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  • Who is regulated by the SPCC Rule?

    Before a facility is subject to the SPCC Rule, it must meet three criteria: 1) it must be non-transportation-related; 2) it must have an aggregate aboveground storage capacity greater than 1,320 gallons or a completely buried storage capacity greater than 42,000 gallons; and 3) there must be a reasonable expectation…

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  • Oil-filled equipment capacity less than 55 gallons

    Do the revised SPCC requirements apply to electrical substations that have transformers larger than 55 gallons and a total storage of 1,320 gallons? An owner/operator must prepare an SPCC Plan if the facility, due to its location could reasonable be expected to discharge oil into or upon a navigable water…

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  • Are all milk farms and milk producers exempt from the SPCC Rule?

    The exemption is for all milk and milk product containers, piping and appurtenances, but does not exempt containers that store other oils, such as petroleum oil at dairies, milk producers and milk product manufacturing facilities. These facilities will not have to account for, or address the exempt milk and milk…

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