---
kind: "section"
citation: "47 C.F.R. § 90.627"
title: "47"
number: "90.627"
heading: "Limitation on the number of frequency pairs that may be assignable for trunked systems and on the number of trunked systems."
url: "https://uscodex.org/cfr/47/90.627"
---

# §90.627. Limitation on the number of frequency pairs that may be assignable for trunked systems and on the number of trunked systems.

- (a) The maximum number of frequency pairs that may be assigned at any one time for the operation of a trunked radio system is twenty, except as specified in [§ 90.621(a)(1)(iv)](/cfr/47/90.621.md?p=a-1-iv).
- (b) [Reserved]

## Notes

### Amendments

[47 FR 41032, Sept. 16, 1982, as amended at 48 FR 44559, Sept. 29, 1983; 48 FR 51929, Nov. 15, 1983; 49 FR 36377, Sept. 17, 1984; 51 FR 37404, Oct. 22, 1986; 53 FR 12157, Apr. 13, 1988; 58 FR 44963, Aug. 25, 1993; 59 FR 59966, Nov. 21, 1994; 90 FR 57711, Dec. 12, 2025]

### Authority

Authority: 47 U.S.C. 154(i), 161, 303(g), 303(r), 332(c)(7), 1401-1473

### Source

Source: 43 FR 54791, Nov. 22, 1978, unless otherwise noted.

### Amendments

[47 FR 41032, Sept. 16, 1982, as amended at 48 FR 44559, Sept. 29, 1983; 48 FR 51929, Nov. 15, 1983; 49 FR 36377, Sept. 17, 1984; 51 FR 37404, Oct. 22, 1986; 53 FR 12157, Apr. 13, 1988; 58 FR 44963, Aug. 25, 1993; 59 FR 59966, Nov. 21, 1994; 90 FR 57711, Dec. 12, 2025]