StacksVerified U.S. regulatory reference

46 CFR §113.35-13

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
If more than one transmitter operates a common indicator in the engineroom, all the transmitters must be mechanically interlocked and operate in synchronism. A failure of the transmission wire or chain at any transmitter must not interrupt or disable any other transmitter.