(a) If there is a change in operational status that affects the respirable dust sampling requirements of this part, the operator shall report the change in operational status of the mine, mechanized mining unit, or designated area to the MSHA District Office or to any other MSHA office designated by the District Manager. Status changes shall be reported in writing or electronically within 3 working days after the status change has occurred.
CFR 30-70.212-2014由US-CFR-file 发布于 1993-12-02,并于 1993-12-02 实施。
CFR 30-70.212-2014 在中国标准分类中归属于: F00 标准化、质量管理。
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