IARC has also published, as Supplement 7, a volume entitled "Overall Evaluation of Carcinogenicity: An Updating of IARC Monographs Volumes 1 to 42". In this Supplement, and in monographs 43 onward, chemicals have been classified in the following groups:
Group 1 -- The Working Group concluded that the listed agents are carcinogenic to humans.
Group 2A -- The Working Group concluded that the listed agents are probably carcinogenic to humans.
Group 2B -- The Working Group concluded that the listed agents are possibly carcinogenic to humans.
Group 3 -- The Working Group concluded that the listed agents are not classifiable as to their carcinogenicity to humans.
Group 4 -- The Working Group concluded that the listed agent is probably not carcinogenic to humans.
Group 1 -- The Working Group concluded that the listed agents are carcinogenic to humans.
Group 2A -- The Working Group concluded that the listed agents are probably carcinogenic to humans.
Group 2B -- The Working Group concluded that the listed agents are possibly carcinogenic to humans.
Group 3 -- The Working Group concluded that the listed agents are not classifiable as to their carcinogenicity to humans.
Group 4 -- The Working Group concluded that the listed agent is probably not carcinogenic to humans.