Before the GHS was created and implemented by the United Nations, there were many different regulations on hazard classification in use in different countries.
The National Institute for Occupational Safety and Health (NIOSH) has announced plans to hold a public meeting to review its approach to classifying carcinogens and establishing recommended exposure limits (RELs) for occupational exposures to hazards associated with cancer.
The National Institute for Occupational Safety and Health is has initiated a review of its method of classifying carcinogens and establishing recommended exposure limits (RELs) for occupational exposures to hazards associated with cancer.