Frequently Asked Questions
Note: EPA no longer updates this information, but it may be useful as a reference or resource.
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Many people have raised concerns about animal testing and the HPV Challenge
Program. You can download the Agency's Factsheet
on Animal Welfare (PDF Format) to learn what the EPA is doing
to avoid unnecessary testing and to reduce the use of animals.
Letters from companies and other sources asking specific technical questions about the HPV Challenge Program. The Agency response is included with each letter.
Detailed technical information on some of the issues appearing briefly in the FAQs can be found in the papers posed on the Guidance documents page.
The Agency has prepared a series of Fact Sheets on the ChemRTK Initiative. They are a convenient source of information on various aspects of ChemRTK, including the HPV Challenge Program and Children's Chemical Health Testing, and address issues ranging from animal welfare to voluntary participation in the HPV Challenge. These documents are in PDF format and will require the Adobe Acrobat Reader.
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