# Sealing of Abandoned Areas
> **Mine Safety and Health Administration** · Final rule; limited reopening of comment period; availability; notice of public hearing; close of comment period. · Published 2007-12-19 · Effective 2007-05-22 · 72 FR 71791
## Document
- **Document number:** 07-6128
- **Category:** mine-safety
- **Sub-agency:** Mine Safety and Health Administration
- **Federal Register citation:** 72 FR 71791
- **CFR reference:** 30 CFR 75
- **Publication date:** 2007-12-19
- **Effective date:** 2007-05-22
## Abstract

The Mine Safety and Health Administration (MSHA) is reopening the comment period for the Emergency Temporary Standard (ETS) on sealing of abandoned areas of underground coal mines to provide commenters time to review and submit comments on the U.S. Army Corps of Engineers' Draft Report "CFD [Computational Fluid Dynamics] Study and Structural Analysis of the Sago Mine Accident" (Report).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2007/12/19/07-6128/sealing-of-abandoned-areas)
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