# Petition for Modification
**AGENCY:**
Mine Safety and Health Administration, Labor.
**ACTION:**
Notice; correction.
**SUMMARY:**
This notice amends a petition for modification published in the *Federal Register* on May 23, 2012, for the Mountain Coal Company, LLC, P.O. Box 591, 5174 Highway 133, Somerset, Colorado 81434.
**FOR FURTHER INFORMATION CONTACT:**
George F. Triebsch, 202-693-9440.
**Correction**
This notice corrects the mandatory safety standard cited in the notice. The safety standard referenced in the May 23, 2012 *Federal Register* notice on page 30556 in the 2nd column, Docket Number M-2012-075-C, was listed as 30 CFR 75.500(d) (Permissible electric equipment). The correct mandatory safety standard is 30 CFR 75.503 (Permissible electric face equipment; maintenance).
Dated: December 4, 2012.
George F. Triebsch,
Director, Office of Standards, Regulations and Variances.