 The notice seeks to reexamine the 2003 rejection citing the international allocation of the band in all ITU regions by WRC-07 and the lack of use by the primary allocation holders.The notice seeks further comment and empirical evidence regarding interference to PLC systems based on data collected by experimental licenses granted in the United States and by other stations around the world.On 27 April 2015 the Federal Communications Commission announced a preliminary decision to permit amateur operation on a secondary basis from 135.7–137.8 kHz, at a maximum output of 1 Watt EIRP.