FCC TIS Rule Change Effective June 4

Relaxed FCC rules on travelers' information stations (TIS), used to send noncommercial travel-related information to motorists over AM frequencies, will be effective June 4, said the agency in Tuesday's Federal Register. A TIS rule requiring filtering of audio frequencies transmitted over such stations will be relaxed to requiring it only above 5 kHz instead of 3 kHz, it said. "This rule change will enable TIS operators to improve the audio quality and intelligibility of TIS broadcasts." Commissioners approved a TIS order in March that held off on making other changes some requested (see 1503260059).