OAR 437-004-9090: 13 Carcinogens

Definitions: The 13 carcinogens are: 4-Nitrobiphenyl, CAS 92-93-3; alpha-Naphthylamine, CAS 134-32-7; Methyl chloromethyl ether, CAS 107-30-2; 3,3-Dichlorobenzidine (and its salts), CAS 91-94-1; bis-Chloromethyl ether, CAS 542-88-1; beta-Naphthylamine, CAS 91-59-8; Benzidine, CAS 92-87-5; 4-Aminodiphenyl, CAS 92-67-1; Ethyleneimine, CAS 151-56-4; beta-Propiolactone, CAS 57-57-8; 2-Acetylaminoflourene, CAS 53-96-3; 4-Dimethylaminoazo-benzene, CAS 60-11-7; and N-Nitrosodimethylamine, CAS 62-75-9. (1) The employer is responsible to determine, before work begins, if any task or activity assigned to workers will result in a potential exposure to any of the 13 carcinogens. (2) Work that exposes employees to any of the 13 carcinogens must comply with Division 2/Z, 1910.1003, 13 Carcinogens.