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Federal Communications Commission · Notice · October 19, 2026
In this document, the Wireless Telecommunications Bureau (Bureau) invites interested parties to comment on the Upper C-band Transition Preliminary Cost Catalog (Cost Catalog), which is attached as Attachment A. The Cost Catalog contains preliminary estimates of reasonable and necessary transition costs that eligible space station operators and incumbent earth station operators (collectively, incumbents) may incur as they transition out of 4.0-4.16 GHz to make 160 megahertz of mid-band spectrum available to 3.7 GHz Service licensees for flexible use throughout the contiguous United States. The Cost Catalog also includes the payment categories for incumbent earth station operators that elect lump sum reimbursement in lieu of actual cost reimbursement. In Upper C-band (3.98-4.2 GHz); Expanding Flexible Use of the 3.7 to 4.2 GHz Band, GN Docket Nos. 25-59 and 18-122, Report and Order, Order of Proposed Modification, and Order on Reconsideration, FCC 26-46 (July 24, 2026) (Upper C-band R&O), the Commission established that new 3.7 GHz Service licensees will reimburse incumbents for their reasonable and necessary relocation costs to transition out of 4.0-4.16 GHz and directed the Bureau to develop the Cost Catalog.
Action: Notice; solicitation of comment.
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