StacksVerified U.S. regulatory reference

46 CFR §185.728

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The master of the vessel shall ensure that:
  1. (a)Each EPIRB, other than an EPIRB in an inflatable liferaft, must be tested monthly, using the integrated test circuit and output indicator, to determine that it is operative;
  2. (b)The EPIRB's battery is replaced after it is used, or before the date required by FCC regulations in 47 CFR part 80, whichever comes sooner; and
  3. (c)The EPIRB test required by paragraph (a) shall be logged or otherwise documented, as applicable.