Minnesota has adopted permissible exposure limits (PELs) for certain air contaminants in general industry workplaces that are stricter than federal requirements.
The Minnesota Department of Labor and Industry (MDLI) administers and enforces workplace safety rules in the state.
Minnesota has adopted the 1989-1992 version of the federal "Z tables" of air contaminants that contain stricter exposure limits for many substances than the current federal PEL rule (Z tables at 29 CFR 1910.1000)
Federal OSHA had revised its Z tables of hazardous substances and PELs in the 1980s to include the substances adopted by Washington's standards, but in 1989 a federal circuit court struck down the OSHA revisions. At least eight other states, including California, Oregon, and Michigan, retained the revised OSHA Z tables which are stricter than existing federal standards. PEL TABLE
For a copy of the PEL table, click here.