Discusses individual substances, mixtures of chemicals, or exposure circumstances associated with technological processes which are known to be human carcinogens or which may reasonably be anticipated to be human carcinogens. Also contains information relating to estimated exposures and exposure standards or guidelines. Chapters: delisted substances; profiles for agents, substances, mixtures or exposure circumstances known to be human carcinogens, or reasonably anticipated to be human carcinogens; list of manufacturing processes, occupations, and exposure circumstances classified; and listing/delisting procedures.