Q. Is secondary containment necessary for storage containers under 55 gallons (i.e. 5 gallon buckets)?
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A. Under the federal SPCC regulations, only containers that have a capacity of 55 gallons or greater are regulated and therefore, secondary containment is only required for containers that meet this threshold. Containers that have a capacity of less than 55 gallons do not require secondary containment under the SPCC regulations.