The Environmental Protection Agency published in the Federal Register of June 29, 1998 a document amending the regulations affecting disposal of polychlorinated biphenyls (PCBs). EPA has identified several technical errors in that document. This rule corrects those errors. In addition, this rule establishes procedures for requesting an approval for risk-based sampling, cleanup, storage, or disposal of PCB remediation waste, and for risk-based decontamination or sampling of decontaminated material, where those activities occur in more than one EPA Region. DATES: This rule is effective June 24, 1999. In accordance with 40 CFR 23.5, this rule is promulgated for purposes of judicial review at 1 p.m. eastern standard time on July 8, 1999. FOR FURTHER INFORMATION CONTACT: Christine Augustiniak, Acting Director, Environmental Assistance Division (7408), Office of Pollution Prevention and Toxics, Rm. E-543B, Environmental Protection Agency, 401 M St. SW., Washington, DC 20460, (202) 554-1404, TDD (202) 544-0551, e- mail: TSCA-Hotline@epa.gov. For technical information contact: Julie Simpson, Attorney Advisor, National Program Chemicals Division (7404), Office of Pollution Prevention and Toxics, Environmental Protection Agency, 401 M St., SW., Washington DC 20460; telephone number: 202-260-7873; fax number: 202- 260-1724; e-mail address: simpson.julie@epa.gov. SUPPLEMENTARY INFORMATION: