According to the Agriculture Department, inspectors have uncovered more than one-thousand violations of rules that are put into place in order to prevent mad cow disease from reaching humans.
USDA claims that no contaminated meat has made it all the way to the consumer.
The rules that govern the regulations that a plant must follow were created in response to the nation's first case of mad cow disease in December 2003.
These regulations require that brains, spinal cords and other nerve parts, which are the parts of the cow that carry mad cow disease, be removed whenever older cows are slaughtered.
Beef slaughterhouses and processing plants have been cited more than one-thousand times for failing to comply with rules on removing those tissues over a span of 17 months.
USDA released the information in response to requests made by several groups under the federal Freedom of Information Act.