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Assessing and Managing Chemicals under TSCA

Risk Evaluation for Carbon Tetrachloride

Carbon tetrachloride is a solvent used primarily as a feedstock in the production of hydrochlorofluorocarbons, hydrofluorocarbons and hydrofluoroolefins and in the manufacturing of other chlorinated compounds and petrochemicals. The Montreal Protocol and Title VI of the Clean Air Act Amendments of 1990 called for a complete phase-out of carbon tetrachloride production for non‑feedstock uses by 2000. The Consumer Product Safety Commission banned the use of carbon tetrachloride in consumer products (excluding unavoidable residues not exceeding 10 parts per million atmospheric concentration) in 1970. EPA has identified several other solvent uses of carbon tetrachloride such as degreasing and cleaning, adhesives, sealants, paints, coatings, rubber, cement and asphalt formulations.

Scope of Carbon Tetrachloride Risk Evaluation under Amended TSCA

This scope document includes the hazards, exposures, conditions of use, and the potentially exposed or susceptible subpopulations EPA expects to consider in its risk evaluation of carbon tetrachloride conducted pursuant to TSCA Section 6(b)(4). EPA will publish and take public comment on a Problem Formulation document for carbon tetrachloride which will refine the current scope, as an additional interim step, prior to publication the draft risk evaluation. This problem formulation is expected to be released within approximately six months of publication of the scope documents.