47 CFR § 73.873
LPFM license period
February 16, 2021
(a) Initial licenses for LPFM stations will be issued for a period running until the date specified in §73.1020 for full service stations operating in the LPFM station's state or territory, or if issued after such date, determined in accordance with §73.1020.
(b) The license of an LPFM station that fails to transmit broadcast signals for any consecutive 12-month period expires as a matter of law at the end of that period, notwithstanding any provision, term, or condition of the license to the contrary.
[78 FR 2109, Jan. 9, 2013]