The FDA this week released a new Compliance Policy Guide (CPG) regarding salmonella contamination in food for animals, creating a zero-tolerance standard for pet foods and a less-stringent risk-based standard for livestock feeds.

Pet foods contaminated with salmonella pose a higher risk to human health due to the more frequent direct contact pet owners have with those products.

For livestock and horse feeds, the CPG outlines a risk-based salmonella enforcement policy, focusing on the strains that are capable of causing disease in animals, and provides examples of salmonella strains reported to cause disease in a specific animal species such as Salmonella Newport or Salmonella Dublin in dairy or beef feeds.

Prior to this new CPG, an Advisory Opinion from 1967 had implied a zero-tolerance policy for any strain of salmonella in certain animal feed ingredients, even if it was not capable of causing foodborne illness. In addition to the CPG, FDA revoked the 1967 Advisory Opinion and entered the removal into the Federal Register.

Read more from FDA’s Center for Veterinary Medicine.