National Toxicology Program

[Federal Register: April 19, 1999 (Volume 64, Number 74)]
[Notices]
[Page 19188-19189]

National Toxicology Program: Call for Public Comment on 11 Substances, Mixtures and Exposure Circumstances to be Reviewed in 1999 for Listing in or Delisting (Removing) From the Report on Carcinogens, Tenth Edition; Amendments.

SUMMARY: The NTP published in the Federal Register of April 2, 1999, a list of substances to be reviewed for possible listing in or delisting from the Report on Carcinogens, Tenth Edition. The notice is being amended to (1) extend the deadline for public comment period to June 3, 1999 and (2) to expand the section on "Clarification of the Criteria" to address some misunderstandings regarding the application of the final paragraph of the criteria for listing agents, substances or mixtures in the Report on Carcinogens.

AMENDMENTS: In the Federal Register of April 2, 1999, in FR Doc. 99-8098, on page 15984, in the first column under the section "Public Comment Requested" the 8^th line with the sentence starting "Comments received by April 30, 1999…" and the rest of the section is being deleted and the following added: "Comments received by June 3, 1999 will be considered by the review groups in the preparation of the background documents for each substance. Comments or questions should be directed to Dr. C. W. Jameson at the address listed below."

In the section "Clarification of the Criteria" on page 15983, in the third column, a second paragraph is added as follows: There have also been some misunderstandings regarding the application of the final paragraph of the criteria which begins, "Conclusions regarding carcinogenicity in humans or experimental animals..." Since these criteria were first published on September 26, 1996 (61 FR 50499), the paragraph has applied to both the "known to be human carcinogen" and the "reasonably anticipated to be human carcinogen" categories and will continue to apply.

FOR FURTHER INFORMATION CONTACT
Dr. C.W. Jameson, National Toxicology Program, Report on Carcinogens, 79 Alexander Drive, Building 4401, Room 3127, MD: EC-14, P.O. Box 12233, Research Triangle Park, NC 27709; phone: (919) 541-4096, fax: (919) 541-0947, email: jameson@niehs.nih.gov. The Criteria, the Original Federal Register Notice and Background on the Report on Carcinogens can also be found on the NTP Web Site at: http://ntp.niehs.nih.gov/ntp

Dated: April 9, 1999



____________________________
Kenneth Olden, Ph.D.
Director, National Toxicology Program

[Billing code 4140-01-P]