---
kind: "section"
citation: "30 C.F.R. § 57.6603"
title: "30"
number: "57.6603"
heading: "Air gap."
url: "https://uscodex.org/cfr/30/57.6603"
---

# §57.6603. Air gap.


At least a 15-foot air gap shall be provided between the blasting circuit and the electric power source.


## Notes

### Source

Source: 61 FR 36801, July 12, 1996, unless otherwise noted.

### Authority

Authority: 30 U.S.C. 811.

### Source

Source: 50 FR 4082, Jan. 29, 1985, unless otherwise noted.