National Toxicology Program (NTP) Board of Scientific Counselors Technical Reports Review Subcommittee Meeting; Review of Draft NTP Technical Reports; Correction

---
identifier: "/us/fr/04-100"
source: "fr"
legal_status: "authoritative_unofficial"
title: "National Toxicology Program (NTP) Board of Scientific Counselors Technical Reports Review Subcommittee Meeting; Review of Draft NTP Technical Reports; Correction"
title_number: 0
title_name: "Federal Register"
section_number: "04-100"
section_name: "National Toxicology Program (NTP) Board of Scientific Counselors Technical Reports Review Subcommittee Meeting; Review of Draft NTP Technical Reports; Correction"
positive_law: false
currency: "2004-01-05"
last_updated: "2004-01-05"
format_version: "1.1.0"
generator: "[email protected]"
agency: "Health and Human Services Department"
document_number: "04-100"
document_type: "notice"
publication_date: "2004-01-05"
agencies:
  - "Health and Human Services Department"
  - "Public Health Service"
fr_citation: "69 FR 373"
fr_volume: 69
---


#  National Toxicology Program (NTP) Board of Scientific Counselors Technical Reports Review Subcommittee Meeting; Review of Draft NTP Technical Reports; Correction

The table included in the *Federal Register* notice (68 FR, No. 232 pp. 67696-67697) published December 3, 2003, had errors in the information provided in the column headed Route & Exposure Levels for 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD), 3,3',4,4',5-Pentachlorobiphenyl (PCB 126), 2,3,4,7,8-Pentachlorodibenzo-furan (PeCDF) and the Mixture of PCB 126, TCDD, and PeCDF. The corrected information is provided below.

| Chemical/CAS No. | Report No. | Route & exposure levels |
| --- | --- | --- |
| 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD)/1746-01-6 | TR 521 | Two-year study; administered by gavage at 3-100 ng/kg to female Sprague-Dawley rats. |
| 3,3',4,4',5-Pentachlorobiphenyl (PCB 126)/57465-28-8 | TR 520 | Two-year study; administered by gavage at 30-1000 ng/kg to female Sprague-Dawley rats. |
| 2,3,4,7,8-Pentachlorodibenzo-furan (PeCDF)/57117-31-4 | TR 525 | Two-year study; administered by gavage at 6-200 ng/kg to female Sprague-Dawley rats. |
| Mixture of PCB 126, TCDD, and PeCDF | TR 526 | Two-year study; administered by gavage at 10-100 ng TCDD “equivalents”/kg to female Sprague-Dawley. |

Dated: December 19, 2003.

Samuel Wilson,

Deputy Director, National Toxicology Program.