49 CFR § 233.1 - Scope.

---
identifier: "/us/cfr/t49/s233.1"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "49 CFR § 233.1 - Scope."
title_number: 49
title_name: "Transportation"
section_number: "233.1"
section_name: "Scope."
chapter_name: "FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
part_number: "233"
part_name: "SIGNAL SYSTEMS REPORTING REQUIREMENTS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "49 U.S.C. 504, 522, 20103, 20107, 20501-20505, 21301, 21302, 21311; 28 U.S.C. 2461 note; and 49 CFR 1.89."
regulatory_source: "49 FR 3379, Jan. 26, 1984, unless otherwise noted."
cfr_part: "233"
---


# 233.1 Scope.

This part prescribed reporting requirements with respect to methods of train operation, block signal systems, interlockings, traffic control systems, automatic train stop, train control, and cab signal systems, or other similar appliances, methods, and systems.