StacksVerified U.S. regulatory reference

47 CFR §90.431

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
No person is required to be in attendance at a station when transmitting during normal rendition of service and when either:
  1. (a)Transmitting for telemetering purposes; or,
  2. (b)Retransmitting by self-actuating means a radio signal received from another radio station or stations.