Pursuant to 40 CFR 721.185, EPA is revoking significant new use rules (SNURs) promulgated under section 5(a)(2) of the Toxic Substances Control Act (TSCA) for four chemical substances. Pursuant to 40 CFR 721.160, the SNUR for the chemical substance covered by premanufacture notice (PMN) P-98-475 designated certain activities as significant new uses based on concerns identified in a corresponding TSCA section 5(e) consent order for that chemical substance. Based on the concern criteria in 40 CFR 721.170(b), for the chemical substances covered by PMNs P-98-1043, P-99-467, and P-01-71, EPA issued non-5(e) SNURs (i.e., SNURS on substances that are not subject to TSCA section 5(e) consent orders) designating certain activities as significant new uses. Subsequently, EPA received and reviewed new information and test data for each of the chemical substances. Based on the new data, the Agency no longer finds that activities prohibited by the TSCA section 5(e) consent order for P-98-475, nor activities not described in PMNs P-98- 1043, P-99-0467, and P-01-71 constitute significant new uses.