47 CFR § 11.54 - EAS operation during a National Level emergency.
(a) Immediately upon receipt of an EAN message, or the NPT Event code in the case of a nationwide test of the EAS, EAS Participants must comply with the following requirements, as applicable:
(1) Analog and digital broadcast stations may transmit their call letters and analog cable systems, digital cable systems and wireless cable systems may transmit the names of the communities they serve during an EAS activation. State and Local Area identifications must be given as provided in State and Local Area EAS Plans.
(2) Analog and digital broadcast stations are exempt from complying with §§ 73.62 and 73.1560 of this chapter (operating power maintenance) while operating under this part.
(3) The time of receipt of the EAN shall be entered by analog and digital broadcast stations in their logs (as specified in §§ 73.1820 and 73.1840 of this chapter), by analog and digital cable systems in their records (as specified in § 76.1711 of this chapter), by subject wireless cable systems in their records (as specified in § 21.304 of this chapter), and by all other EAS Participants in their records as specified in § 11.35(a).
(b) EAS Participants originating emergency communications under this section shall be considered to have conferred rebroadcast authority, as required by section 325(a) of the Communications Act of 1934, 47 U.S.C. 325(a), to other EAS Participants.
(c) During a national level EAS emergency, EAS Participants may transmit in lieu of the EAS audio feed an audio feed of the President's voice message from an alternative source, such as a broadcast network audio feed.