The Federal Anti-Tampering Act, Pub.L. No. 98-127, 97 Stat. 831, October 13, 1983, created section 1365 of Title 18, United States Code, which makes it an offense to tamper with consumer products or to engage in related conduct. It was enacted in response to the Tylenol poisoning deaths in the Chicago area in the fall of 1982.

As in the past, State and local authorities will continue to play a large and significant role in the investigation and prosecution of alleged tampering. The Federal Anti-Tampering Act does not preempt prosecution by State and local authorities for conduct which would be in violation of 18 U.S.C. § 1365. Hence, referral to such authorities is appropriate when no significant Federal interest requires vindication (e.g., in an isolated instance, when there is no serious impact upon commerce, when the wrongdoer has been identified and State or local authorities are prepared to handle the case, etc.).