NIOSH is working towards issuing the draft of a new policy on classification of carcinogens by December, an agency source says. The agency is looking at whether to adopt a new tiered classification system that would create different levels of identified risk, like systems used by other organizations such as the International Agency for Research on Cancer (IARC). Health and safety professionals are closely watching the effort as it could eventually affect how the research agency categorizes chemicals of concern and provide data that OSHA could incorporate into rulemakings on chemical exposures.
December 29, 2025
