---
kind: "section"
citation: "49 C.F.R. § 221.3"
title: "49"
number: "221.3"
heading: "Application."
url: "https://uscodex.org/cfr/49/221.3"
---

# §221.3. Application.

- (a) Except as provided in [paragraph (b)](#b) of this section, this part applies to passenger, commuter and freight trains when operated on a standard gage main track which is part of the general railroad system of transportation.
- (b) **This part does not apply to—**
  - (1) A railroad that operates only trains consisting of historical or antiquated equipment for excursion, educational, or recreational purposes;
  - (2) A train that operates only on track inside an installation which is not part of the general railroad system of transportation;
  - (3) Rapid transit operations in an urban area that are not connected with the general railroad system of transportation.
  - (4) **A railroad that operates only one train at any given time.**

## Notes

### Amendments

[42 FR 2321, Jan. 11, 1977, as amended at 53 FR 28600, July 28, 1988]

### Authority

Authority: 49 U.S.C. 20103, 20107; 28 U.S.C. 2461 note; and 49 CFR 1.89.

### Source

Source: 42 FR 2321, Jan. 11, 1977, unless otherwise noted.

### Amendments

[42 FR 2321, Jan. 11, 1977, as amended at 53 FR 28600, July 28, 1988]