"Draft for public comment (update). Comment period ends: February 27, 2006."--Cover. "September 2005." Chemical manager(s)/author(s): Zemoria E. Rosemond, G. Daniel Todd, Malcolm Williams, Lisa Ingerman, Sari Paikoff, Jennifer Rhoades, Fernando Llados, Stephen Bosch--P. ix. "A toxicological profile for heptachlor/heptachlor epoxide was released in 1993. This edition supersedes any previously released draft or final profile"--p. iii. "This toxicological profile is prepared in accordance with guidelines developed by the Agency for Toxic Substances and Disease Registry (ATSDR) and the Environmental Protection Agency (EPA). The original guidelines were published in the Federal Register on April 17, 1987"--P. v. Includes bibliographical references (p. 135-169) and index.