Carbon tetrachloride is a Class I, Group I ozone-depleting substance regulated under the EPA's stratospheric ozone protection program. Importers must hold valid EPA allowances for each shipment and comply with reporting requirements under 40 CFR Part 82. TSCA certification is also required at entry. The allowance system effectively caps total import volumes, so securing allowances in advance is a prerequisite for any commercial import program.

EPA regulations provide limited exemptions for carbon tetrachloride used as a process agent or feedstock in the production of other chemicals, where the carbon tetrachloride is transformed or destroyed in the process. These exemptions are narrowly defined and require specific documentation. Importers claiming a feedstock or process-agent exemption should work with EPA and a licensed customs broker to ensure the exemption is properly documented and the shipment complies with all applicable conditions.