---
kind: "section"
citation: "47 C.F.R. § 80.251"
title: "47"
number: "80.251"
heading: "Scope."
url: "https://uscodex.org/cfr/47/80.251"
---

# §80.251. Scope.

- (a) [Reserved]
- (b) The equipment described in this subpart must be certificated.
- (c) The term transmitter means the transmitter unit and all auxiliary equipment necessary to make this unit operate as a main or emergency transmitter in a ship station at sea. Each separate motor-generator, rectifier, or other unit required to convert the ship primary power to the phase, frequency, or voltage necessary to energize the transmitter unit is considered a component of the transmitter.
- (d) [Reserved]

## Notes

### Amendments

[51 FR 31213, Sept. 2, 1986, as amended at 63 FR 36606, July 7, 1998; 68 FR 46966, Aug. 7, 2003; 73 FR 4483, Jan. 25, 2008; 76 FR 67612, Nov. 2, 2011; 90 FR 57709, Dec. 12, 2025]

### Authority

Authority: 47 U.S.C. 151-155, 301-609; 3 U.S.T. 3450, 3 U.S.T. 4726, 12 U.S.T. 2377.

### Source

Source: 51 FR 31213, Sept. 2, 1986, unless otherwise noted.

### Amendments

[51 FR 31213, Sept. 2, 1986, as amended at 63 FR 36606, July 7, 1998; 68 FR 46966, Aug. 7, 2003; 73 FR 4483, Jan. 25, 2008; 76 FR 67612, Nov. 2, 2011; 90 FR 57709, Dec. 12, 2025]