Amends the Fentanyl Sanctions Act by changing definitions and terminology, adding “copy‑cat ingredient” and counterfeit‑drug language, and replacing some uses of “opioid” with the broader term “illicit drug.” It also directs edits to intelligence‑use and foreign‑trafficker identification provisions, inserts a (partly unspecified) waiver related to access to prescription medications, and makes technical and conforming changes across related statutes and reporting requirements. Overall, the bill is largely technical: it updates definitions, renames/renumbers text, and adjusts cross‑references to broaden the Act’s scope to additional illicit drug inputs and counterfeit drugs while clarifying how intelligence and sanctions tools apply.