# Safety Standards for Roof Bolts in Metal and Nonmetal Mines and Underground Coal Mines
> **Mine Safety and Health Administration** · Final rule. · Published 1998-04-22 · Effective 1998-06-22 · 63 FR 20026
## Document
- **Document number:** 98-10690
- **Category:** mine-safety
- **Sub-agency:** Mine Safety and Health Administration
- **Federal Register citation:** 63 FR 20026
- **CFR reference:** 30 CFR 56
- **Publication date:** 1998-04-22
- **Effective date:** 1998-06-22
## Abstract

MSHA is revising its safety standards for roof and rock bolts at metal and nonmetal mines and underground coal mines by updating the reference to the American Society for Testing and Materials (ASTM) standard for roof and rock bolts and accessories. The new reference reflects technological advances in the design of roof and rock bolts and support materials. It will improve the level of protection provided by the standards currently in use.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1998/04/22/98-10690/safety-standards-for-roof-bolts-in-metal-and-nonmetal-mines-and-underground-coal-mines)
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