The U.S. Food and Drug Administration (FDA) and the Federal Trade Commission (FTC) issued warning letters on July 16, 2024, to five companies for illegally selling and introducing into the market copycat food products containing delta-8 tetrahydrocannabinol (THC). This action marks a continuation of the joint efforts by FDA and FTC to protect consumers from unregulated, intoxicating delta-8 THC products that have “[i]nadequate or confusing labeling,” according to FDA Principal Deputy Commissioner Namandjé Bumpus, Ph.D. In these new warning letters, FDA noted that these companies have 15 business days to respond regarding how they will address the violations and prevent their recurrence. Failure to address these violations may result in additional enforcement activity, including product seizures and injunctions.