Diesel Particulate Matter Exposure of Underground Coal and Metal and Nonmetal Miners

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This document corrects errors in the preamble discussions to the proposed rule on diesel particulate matter exposure of underground coal miners, and the proposed rule on diesel particulate matter exposure of underground metal and nonmetal miners. Specifically, this document corrects errors in the Diesel Emission Control Estimator formula in the proposed Appendix to Part V of both preambles; and corrects certain titles in proposed Figures V-1 through V-5 of the metal and nonmetal preamble, and proposed Figure V-5 of the coal preamble.