# Evaluation of International Electrotechnical Commission's Standards for Explosion-Proof Enclosures
> **Mine Safety and Health Administration** · Final rule; equivalency determination. · Published 2006-05-17 · Effective 2006-05-17 · 71 FR 28581
## Document
- **Document number:** 06-4391
- **Category:** mine-safety
- **Sub-agency:** Mine Safety and Health Administration
- **Federal Register citation:** 71 FR 28581
- **CFR reference:** 30 CFR 6
- **Publication date:** 2006-05-17
- **Effective date:** 2006-05-17
## Abstract

MSHA reviewed the requirements of the International Electrotechnical Commission's (IEC) standards for Electrical Apparatus for Explosive Gas Atmospheres to determine if they are equivalent to the Agency's applicable product approval requirements or can be modified to provide at least the same degree of protection as those requirements. MSHA has determined that the IEC's standards for explosion-proof enclosures, with modifications, provide the same degree of protection as MSHA's applicable product approval requirements. Applicants may request that MSHA grant product approval for explosion- proof (flameproof) enclosures based on compliance with the IEC standards provided MSHA's specified list of modifications is also addressed in the submitted design.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2006/05/17/06-4391/evaluation-of-international-electrotechnical-commissions-standards-for-explosion-proof-enclosures)
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