---
kind: "section"
citation: "30 C.F.R. § 7.303"
title: "30"
number: "7.303"
heading: "Application requirements."
url: "https://uscodex.org/cfr/30/7.303"
---

# §7.303. Application requirements.

- (a) An application for approval of a motor assembly shall include a composite drawing or drawings with the following information:
  - (1) **Model (type), frame size, and rating of the motor assembly.**
  - (2) Overall dimensions of the motor assembly, including conduit box if applicable, and internal free volume.
  - (3) Material and quantity for each of the component parts that form the explosion-proof enclosure or enclosures.
  - (4) All dimensions (including tolerances) and specifications required to ascertain compliance with the requirements of [§ 7.304](/cfr/30/7.304.md) of this part.
- (b) All drawings shall be titled, dated, numbered, and include the latest revision.

## Notes

### Source

Source: 57 FR 61193, Dec. 23, 1992, unless otherwise noted.

### Authority

Authority: 30 U.S.C. 957.

### Source

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