1. OSHA Toxic and Hazardous Yes 29 CFR 1910.1096
2. NATIONAL (cont.) Standards for Management of Thorium Yes 40 CFR 192, Subpart E Byproduct Materials Pursuant to Section EPA 1993c 84 of the Atomic Energy Act of 1954, asAmended
3. agents. Biological exposure indices. American Conference of Governmental Industrial Hygienists.