The Administrator of the Drug Enforcement Administration is issuing this temporary order to schedule two synthetic benzimidazole- opioid substances, as identified in this order, in schedule I of the Controlled Substances Act. This action is based on a finding by the Administrator that the placement of these two substances in schedule I is necessary to avoid imminent hazard to the public safety. This order imposes the regulatory controls and administrative, civil, and criminal sanctions applicable to schedule I controlled substances on persons who handle (manufacture, distribute, reverse distribute, import, export, engage in research, conduct instructional activities or chemical analysis with, or possess) or propose to handle these two specified controlled substances.