Contact. Known or potential commingling of products during processing or storage, or while being transported from any point to any other point. Contact includes the simultaneous processing in the same room, locker, or container, but not necessarily the same storage facility or conveyance, as long as adequate security measures are taken to prevent commingling, as determined by an authorized APHIS representative.
9 CFR § 94.0
As used in this part, the following terms shall have the meanings set forth in this section.