The US EPA Spill Prevention, Control and Countermeasure rule was developed because of the Deepwater Horizon oil spill in 2010. This new ruling applies facilities that have a total capacity to contain over 1320 gallons of oil, including gasoline, crop oil, vegetable oil, or animal fat. Fat can be an element for many feed mills, even fat in 55 gallon drums, and many farm operations can have gasoline or diesel fuel in sufficient quantity to apply. Facilities must have a plan in place to prevent the spill entering waterways. The plan does not have to be submitted to the EPA, but must be in place upon inspection.