47 C.F.R. § 73.203
Note to § 73.203: This section is limited to non-reserved band changes in channel and/or class and/or community. Applications requesting such changes must meet either the minimum spacing requirements of § 73.207 at the site specified in the application, without resort to the provisions of the Commission's rules permitting short spaced stations as set forth in §§ 73.213 through 73.215, or demonstrate by a separate exhibit attached to the application the existence of a suitable allotment site that fully complies with §§ 73.207 and 73.315 without resort to §§ 73.213 through 73.215.
[71 FR 76219, Dec. 20, 2006]