47 C.F.R. § 73.212
Administrative changes in authorizations
(a) In the issuance of FM broadcast station authorizations, the Commission will specify the transmitter output power and effective radiated power in accordance with the following tabulation:
| Power (watts or kW) | Rounded out to nearest figure (watts or kW) |
|---|---|
| 1 to 3 | .05 |
| 3 to 10 | .1 |
| 10 to 30 | .5 |
| 30 to 100 | 1 |
| 100 to 300 | 5 |
| 300 to 1,000 | 10 |
(b) Antenna heights above average terrain will be rounded out to the nearest meter.