# Electronic Detonators; Correction
> **Mine Safety and Health Administration** · Direct final rule; correction. · Published 2020-05-20 · Effective 2020-05-20 · 85 FR 30627
## Document
- **Document number:** 2020-08859
- **Category:** mine-safety
- **Sub-agency:** Mine Safety and Health Administration
- **Federal Register citation:** 85 FR 30627
- **CFR reference:** 30 CFR 56
- **Publication date:** 2020-05-20
- **Effective date:** 2020-05-20
- **DOL docket:** Docket No. MSHA-2019-0007
## Abstract

The Mine Safety and Health Administration (MSHA) is correcting a footnote in the preamble of a direct final rule that appeared in the Federal Register on January 14, 2020 and that became effective on March 16, 2020. The direct final rule revised certain safety standards for explosives at metal and nonmetal mines.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2020/05/20/2020-08859/electronic-detonators-correction)
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