Provides that a fentanyl analogue shall be deemed to be a schedule I opiate

This bill defines "fentanyl analogue" as any substance structurally related to fentanyl through specific chemical modifications (e.g., replacing parts of the molecule or adding certain groups). It adds all such analogues to Schedule I of the public health law, making them illegal without a prescription. The bill also clarifies that "knowingly" possessing or selling these substances does not require knowledge of their exact chemical structure. Exclusions include pure fentanyl, FDA-approved drugs, and investigational substances under specific exemptions. This directly affects individuals handling these chemicals, medical professionals, and law enforcement.