47 CFR Sections 90.477(a), (b)(2), and (d)(2) permit land mobile licensees to employ interconnection on a non-profit, cost- shared basis and require that cost sharing records be maintained. This section describes requirements for interconnected licensees; interconnected cost-sharing licensees above 800 MHz; interconnected cost-sharing licensees below 800 MHz; and interconnected urban licensees.
The latest form for Sections 90.477(a), (b)(2), (d)(2), and (d)(3), Interconnected Systems expires 2023-03-31 and can be found here.
Federal Enterprise Architecture: General Government - Central Fiscal Operations