Sec. 73.213  Grandfathered short-spaced stations.

    (a) Stations at locations authorized prior to November 16, 1964 that 
did not meet the separation distances required by Sec. 73.207 and have 
remained short-spaced since that time may be modified or relocated 
provided that the predicted distance to the 1 mV/m field strength 
contour is not extended toward the 1 mV/m field strength contour of any 
short-spaced station. Mutual increase in the facilities of such stations 
up to the limits set forth in Sec. 73.211 may be permitted pursuant to 
an agreement between the affected stations and a showing of public 
interest. See Sec. 73.4235.

                                * * * * *