Letter Z

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Z list The OSHA table of Permissible Exposure Limits, so named because the tables are identified as Z-1, Z-2, and Z-3, and because they are found in "Subpart Z - Toxic and Hazardous Substances" of the OSHA regulations. This subpart contains 29 CFR 1910.1000 through 29 CFR 1910.1500.