47 CFR § 51.223 - Application of additional requirements.

---
identifier: "/us/cfr/t47/s51.223"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "47 CFR § 51.223 - Application of additional requirements."
title_number: 47
title_name: "Telecommunication"
section_number: "51.223"
section_name: "Application of additional requirements."
chapter_name: "FEDERAL COMMUNICATIONS COMMISSION"
subchapter_number: "B"
subchapter_name: "COMMON CARRIER SERVICES"
part_number: "51"
part_name: "INTERCONNECTION"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "47 U.S.C. 151-55, 201-05, 207-09, 218, 225-27, 251-52, 271, 332 unless otherwise noted."
regulatory_source: "61 FR 45619, Aug. 29, 1996, unless otherwise noted."
cfr_part: "51"
---


# 51.223 Application of additional requirements.

(a) A state may not impose the obligations set forth in section 251(c) of the Act on a LEC that is not classified as an incumbent LEC as defined in section 251(h)(1) of the Act, unless the Commission issues an order declaring that such LECs or classes or categories of LECs should be treated as incumbent LECs.

(b) A state commission, or any other interested party, may request that the Commission issue an order declaring that a particular LEC be treated as an incumbent LEC, or that a class or category of LECs be treated as incumbent LECs, pursuant to section 251(h)(2) of the Act.