Section 90.621, Selection and Assignment of Frequencies; and Section 90.693, Grandfathering Provisions for Incumbent Licensees

Sections 90.621 and 90.693 require that Specialized Mobile Radio Service (SMR) applicants who wish to locate stations closer than required mileage separation from existing co-channel station to file additional information, and in some instances, a waiver.

The latest form for Section 90.621, Selection and Assignment of Frequencies; and Section 90.693, Grandfathering Provisions for Incumbent Licensees expires 2026-11-30 and can be found here.

Section 90.621, Selection and Assignment of Frequencies and Section 90.693, Grandfathering Provisions for Incumbent Licensees

Federal Enterprise Architecture: General Government - Central Fiscal Operations