---
kind: "section"
citation: "49 C.F.R. § 210.27"
title: "49"
number: "210.27"
heading: "New locomotive certification."
url: "https://uscodex.org/cfr/49/210.27"
---

# §210.27. New locomotive certification.

- (a) A railroad shall not operate a locomotive built after December 31, 1979, unless the locomotive has been certified to be in compliance with the Standards.
- (b) The certification prescribed in this section shall be determined for each locomotive model, by either—
  - (1) Load cell testing in accordance with the criteria prescribed in the Standards; or
  - (2) **Passby testing in accordance with the criteria prescribed in the Standards.**
- (c) If passby testing is used under [paragraph (b)(2)](#b-2) of this section, it shall be conducted with the locomotive operating at maximum rated horsepower output.

## Notes

### Amendments

[48 FR 56758, Dec. 23, 1983, as amended at 84 FR 15145, Apr. 15, 2019]

### Authority

Authority: Sec. 17, Pub. L. 92-574, 86 Stat. 1234 (42 U.S.C. 4916); 49 CFR 1.89.

### Source

Source: 48 FR 56758, Dec. 23, 1983, unless otherwise noted.

### Amendments

[48 FR 56758, Dec. 23, 1983, as amended at 84 FR 15145, Apr. 15, 2019]