[Code of Federal Regulations]
[Title 29, Volume 9]
[Revised as of July 1, 2001]
From the U.S. Government Printing Office via GPO Access
[CITE: 29CFR1990.112]

[Page 214]
 
                             TITLE 29--LABOR
 
CHAPTER XVII--OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT 
                          OF LABOR--(CONTINUED)
 
PART 1990--IDENTIFICATION, CLASSIFICATION, AND REGULATION OF POTENTIAL OCCUPATIONAL CARCINOGENS--Table of Contents
 
Sec. 1990.112  Classification of potential carcinogens.

    The following criteria for identification, classification and 
regulation of potential occupational carcinogens will be applied, unless 
the Secretary considers evidence under the provisions of Secs. 1990.143, 
1990.144 and 1990.145 and determines that such evidence warrants an 
exception to these criteria.
    (a) Category I Potential Carcinogens. A substance shall be 
identified, classified, and regulated as a Category I Potential 
Carcinogen if, upon scientific evaluation, the Secretary determines that 
the substance meets the definition of a potential occupational 
carcinogen in (1) humans, or (2) in a single mammalian species in a 
long-term bioassay where the results are in concordance with some other 
scientifically evaluated evidence of a potential carcinogenic hazard, or 
(3) in a single mammalian species in an adequately conducted long-term 
bioassay, in appropriate circumstances where the Secretary determines 
the requirement for concordance is not necessary. Evidence of 
concordance is any of the following: positive results from independent 
testing in the same or other species, positive results in short-term 
tests, or induction of tumors at injection or implantation sites.
    (b) Category II Potential Carcinogens. A substance shall be 
identified, classified, and regulated as a Category II Potential 
Carcinogen if, upon scientific evaluation, the Secretary determines 
that:
    (1) The substance meets the criteria set forth in Sec. 1990.112(a), 
but the evidence is found by the Secretary to be only ``suggestive''; or
    (2) The substance meets the criteria set forth in Sec. 1990.112(a) 
in a single mammalian species without evidence of concordance.

                            Priority Setting