---
kind: "section"
citation: "49 C.F.R. § 232.503"
title: "49"
number: "232.503"
heading: "Process to introduce new brake system technology."
url: "https://uscodex.org/cfr/49/232.503"
---

# §232.503. Process to introduce new brake system technology.

- (a) Pursuant to the procedures contained in [§ 232.17](/cfr/49/232.17.md), each railroad shall obtain special approval from the FRA Associate Administrator for Safety of a pre-revenue service acceptance testing plan, developed pursuant to [§ 232.505](/cfr/49/232.505.md), for the new brake system technology, prior to implementing the plan.
- (b) Each railroad shall complete a pre-revenue service demonstration of the new brake system technology in accordance with the approved plan, shall fulfill all of the other requirements prescribed in [§ 232.505](/cfr/49/232.505.md), and shall obtain special approval from the FRA Associate Administrator for Safety under the procedures of [§ 232.17](/cfr/49/232.17.md) prior to using such brake system technology in revenue service.

## Notes

### Authority

Authority: 49 U.S.C. 20102-20103, 20107, 20133, 20141, 20301-20303, 20306, 21301-20302, 21304; 28 U.S.C. 2461 note; and 49 CFR 1.89.

### Source

Source: 66 FR 4193, Jan. 17, 2001, unless otherwise noted.