---
kind: "section"
citation: "47 C.F.R. § 25.147"
title: "47"
number: "25.147"
heading: "Space Stations in the 3.7-4.2 GHz band."
url: "https://uscodex.org/cfr/47/25.147"
---

# §25.147. Space Stations in the 3.7-4.2 GHz band.


The 3.7-4.0 GHz portion of the band is being transitioned in CONUS from FSS GSO (space-to-Earth) to the 3.7 GHz Service.

- (a) New applications for space station licenses and petitions for market access concerning space-to-Earth operations in the 3.7-4.0 GHz portion of the band within CONUS will no longer be accepted.
- (b) Applications for new or modified space station licenses or petitions for market access in the 4.0-4.2 GHz portion of the band within CONUS will not be accepted during the transition except by existing operators in the band to implement an efficient transition.
- (c) Applications for new or modified space station licenses or petitions for market access for space-to-Earth operations in the 3.7-4.2 GHz band outside CONUS will continue to be accepted.

## Notes

### Amendments

[85 FR 22864, Apr. 23, 2020]

### Source

Source: 56 FR 24016, May 28, 1991, unless otherwise noted.

### Authority

Authority: 47 U.S.C. 154, 301, 302, 303, 307, 309, 310, 319, 332, 605, and 721, unless otherwise noted.

### Amendments

[85 FR 22864, Apr. 23, 2020]