In its recent opinion in T-Mobile South, LLC v. City of Roswell, Georgia, No. 24-13713 (11th Cir. May 21, 2026), the Eleventh Circuit rejected the "significant gap" test applied by seven other circuits to evaluate effective-prohibition claims under 47 U.S.C. Section 332(c)(7)(B)(i) of the Telecommunications Act of 1996 (the TCA).
The court held that the denial of an individual permit application, standing alone, does not constitute an effective prohibition under the TCA. Rather, the court reasoned that "regulation" in the statute refers to generally applicable rules – not individual zoning decisions – and that an effective-prohibition challenge must therefore target the zoning ordinance or regulatory framework itself. This decision changes the landscape for wireless carriers in Alabama, Florida, and Georgia.
Background: The Statutory Framework
Section 332(c)(7) of the TCA preserves local zoning authority over wireless facility siting while imposing substantive and procedural limitations. Subsection (c)(7)(B)(i) prohibits state and local governments from regulating the placement, construction, or modification of wireless facilities in a manner that prohibits or has the effect of prohibiting the provision of wireless services.
The "Significant Gap" Test: The Majority Approach
Seven circuits – the First, Second, Third, Fourth, Sixth, Seventh, and Ninth – have applied the "significant gap" framework, under which a single permit denial can constitute an effective prohibition if the provider demonstrates (1) a significant gap in service coverage and (2) that the denied facility was the best or only viable way to fill it. Following its May 2026 decision, the Eleventh Circuit has broken from this consensus.
The Eleventh Circuit's Holding
In T-Mobile South, the Eleventh Circuit sua sponte raised the threshold question of whether the denial of a single permit falls within Section 332(c)(7)(B)(i). After supplemental briefing, the court concluded it does not. Relying on contemporaneous dictionary definitions, the court held that "regulation" means control by "rule or restriction" – not individual permit decisions. Because the statute limits only "the regulation of the placement, construction, and modification" of wireless facilities, the court concluded that subsection (c)(7)(B)(i) reaches zoning ordinances, not individual denials.
The court criticized the significant-gap framework as insufficiently rooted in statutory text, emphasizing that Congress used the term "regulation," not "decision." This textualist approach may signal broader judicial skepticism toward readings of Section 332 and could influence future disputes under Sections 253 and 6409 of the Act.
Key Implications
- The significant-gap framework is rejected in the Eleventh Circuit. Carriers can no longer rely on the two-prong significant gap/least intrusive means test to challenge individual permit denials in Alabama, Florida, or Georgia. Pending or contemplated claims based on this framework should be reassessed.
- Claims must target regulatory frameworks, not individual denials. Effective-prohibition claims in the Eleventh Circuit must now challenge a broader regulatory framework – whether written ordinances or unwritten municipal practices – rather than a single permit denial. The court noted that "regulation" includes both written and unwritten rules, so a carrier may challenge a pattern of denials reflecting an unwritten prohibition, but must frame the claim as targeting the rule, not any individual denial.
- Carriers must build a comprehensive regulatory record. The opinion emphasizes the importance of exhausting local relief mechanisms (such as variances) before filing federal challenges and of demonstrating that a municipality's zoning regime as a whole prevents the provision of wireless service. Carriers should be prepared to document patterns of denials across multiple sites, analyze cumulative ordinance restrictions, and present evidence of the practical impossibility of siting under the applicable rules.
Conclusion
The Eleventh Circuit's decision significantly narrows the effective-prohibition cause of action in its jurisdiction. Providers should expect litigation to shift from isolated site disputes toward broader challenges targeting municipal regulatory schemes and patterns of administration.
Carriers should: (1) audit pending effective-prohibition claims in the Eleventh Circuit for viability under the new framework; (2) reframe existing claims as challenges to zoning rules or policies rather than individual denials; (3) develop evidentiary strategies documenting systemic patterns of regulatory prohibition; and (4) monitor potential certiorari review, which could resolve the circuit split.
If you have questions about this decision or its implications for wireless siting and effective-prohibition claims in the Eleventh Circuit, please contact W. Patton Hahn, Andy Rotenstreich, and Aaron C. Garnett.