The master of the vessel shall ensure that:
(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;
(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
(c) The EPIRB test required by paragraph (a) shall be logged or otherwise documented, as applicable. [CGD 85-080, 61 FR 935, Jan. 10, 1996, as amended by USCG-2014-0688, 79 FR 58284, Sept. 29, 2014]