---
kind: "unit"
title: "47"
title_heading: "Telecommunication"
key: "chV/subchB"
level: "subchap"
label: "Subchapter B"
heading: "Subchapter B"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/47/chV-subchB"
sections_count: 0
---

# Subchapter B — Subchapter B

Title 47 C.F.R. — Telecommunication › Chapter V — The First Responder Network Authority

## Contents

- [Part 550-599 — Parts 550-599 [reserved]](/cfr/47/chV-subchB-part550-599.md)