---
kind: "section"
citation: "30 C.F.R. § 7.63"
title: "30"
number: "7.63"
heading: "Application requirements."
url: "https://uscodex.org/cfr/30/7.63"
---

# §7.63. Application requirements.

- (a) Each application for approval of a blasting unit shall include the following:
  - (1) **An overall assembly drawing showing the physical construction of the blasting unit.**
  - (2) **A schematic diagram of the electric circuit.**
  - (3) **A parts list specifying each electric component and its electrical ratings, including tolerances.**
  - (4) **A layout drawing showing the location of each component and wiring.**
  - (5) **The model number or other manufacturer's designation of the blasting unit.**
- (b) All drawings shall be titled, numbered, dated, and include the latest revision number. The drawings may be combined into one or more composite drawings.
- (c) The application shall contain a list of all the drawings submitted, including drawing titles, numbers, and revisions.
- (d) A detailed technical description of the operation and use of the blasting unit shall be submitted with the application.

## Notes

### Amendments

[54 FR 48210, Nov. 21, 1989, as amended at 60 FR 33723, June 29, 1995]

### Source

Source: 54 FR 48210, Nov. 21, 1989, unless otherwise noted.

### Authority

Authority: 30 U.S.C. 957.

### Source

Source: 53 FR 23500, June 22, 1988, unless otherwise noted.

### Amendments

[54 FR 48210, Nov. 21, 1989, as amended at 60 FR 33723, June 29, 1995]