Enacting H.R. 3158 would ease some compliance requirements for farmers, depending on the capacity of oil product containers located on a farm and whether a farm has previously experienced any spills. Specifically, under the bill, certification of compliance with the EPA rule by a professional engineer would only be required if the farm has an individual tank with a storage capacity greater than 10,000 gallons, has an aggregate storage capacity greater than or equal to 42,000 gallons, or has previously experienced a spill. However, an owner or operator of a farm could provide self-certification with the SPCC rule if the farm has an aggregate storage capacity greater than 10,000 gallons, but less than 42,000 gallons, and has no history of spills. Farms with an aggregate capacity of less than or equal to 10,000 gallons and no history of a spill would be exempt from all requirements of the SPCC rule.
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http://www.cbo.gov/publication/43506