47 C.F.R. § 73.505 Zones.
Title 47 - Telecommunication
For the purpose of assignment of noncommercial educational FM stations, the United States is divided into three zones, Zone I, Zone I-A, and Zone II, having the boundaries specified in §73.205. [42 FR 36828, July 18, 1977]
Title 47: Telecommunication
PART 73—RADIO BROADCAST SERVICES
Subpart C—Noncommercial Educational FM Broadcast Stations
§ 73.505 Zones.
