---
kind: "section"
citation: "46 C.F.R. § 108.233"
title: "46"
number: "108.233"
heading: "Location and size."
url: "https://uscodex.org/cfr/46/108.233"
---

# §108.233. Location and size.

- (a) Each helicopter deck must be—
  - (1) At least the size of the rotor diameter of the largest single main rotor helicopter that will be used on the facility; or
  - (2) If tandem main rotor helicopters use the facility, at least of a size to provide a longitudinal axis of 9/10 the overall length of the helicopter, and a width of 3/4 of the overall length of the helicopter.
- (b) Each helicopter deck must be located so as to provide clear approach/departure paths to enable the largest helicopter using the facility to operate in all weather conditions which allow helicopter operations.

## Notes

### Authority

Authority: 43 U.S.C. 1333; 46 U.S.C. 3102, 3306; DHS Delegation No. 00170.1, Revision No. 01.4.

### Source

Source: CGD 73-251, 43 FR 56808, Dec. 4, 1978, unless otherwise noted.