Editors' Summary: In this final installment of a three-part Article, the authors complete their detailed examination of the TSCA statute and regulatory program. The authors begin the installment by discussing TSCA §§ 6 and 7's regulation of existing chemicals, including asbestos, PCPs, and imminently hazardous materials. The authors stress the important potential ramifications of the 5th Circuit's Corrosion Proof Fittings decision. The authors next examine TSCA § 8's reporting and recordkeeping requirements and, then, review the import certification and export notification requirements of TSCA §§ 13 and 12(b). Finally, the authors address civil and criminal enforcement under TSCA §§ 15 and 16.