# Notice of Extension of Public Comment Period for the External Review Draft of a “Framework for Determining a Mutagenic Mode of Action for Carcinogenicity: Using EPA's 2005 Cancer Guidelines and Supplemental Guidance for Assessing Susceptibility From Early-Life Exposure to Carcinogens”
**AGENCY:**
Environmental Protection Agency (EPA).
**ACTION:**
Notice of extension of public comment period.
**SUMMARY:**
On September 27, 2007, the U.S. Environmental Protection Agency (EPA) released for public comment the External Review Draft of the “Framework for Determining a Mutagenic Mode of Action for Carcinogenicity: Using EPA's 2005 *Cancer Guidelines and Supplemental Guidance for Assessing Susceptibility from Early-Life Exposure to Carcinogens* ” (or *Framework* ). At that time, a 60-day public comment period was announced. This notice announces a 30-day extension of the public comment period; the public comment period will end 90 days from September 27, 2007, the date of the original *Federal Register* Notice (72 FR 54910). Visit *http://www.epa.gov/fedrgstr/EPA-GENERAL/2007/September/Day-27/g19119.pdf* ) for further information. Members of the public may obtain the draft interim guidance from *http://www.regulations.gov;* or *http://www.epa.gov/osa/mmoaframework* ; or consult the person listed under *FOR FURTHER INFORMATION CONTACT* .
**ADDRESSES:**
The draft document is available electronically through the EPA Office of the Science Advisor's Web site at: *http://www.epa.gov/osa/mmoaframework* .
**FOR FURTHER INFORMATION CONTACT:**
For more information, contact Resha Putzrath, Ph.D., Office of the Science Advisor, Mail Code 8105R, U.S. Environmental Protection Agency, 1200 Pennsylvania Avenue, NW., Washington, DC 20460; telephone number: (202) 564-3229; fax number: (202) 564-2070, e-mail: *[email protected]* .
Dated: November 8, 2007.
George M. Gray,
EPA Science Advisor.