---
kind: "section"
citation: "49 C.F.R. § 232.611"
title: "49"
number: "232.611"
heading: "Periodic maintenance."
url: "https://uscodex.org/cfr/49/232.611"
---

# §232.611. Periodic maintenance.

- (a) In addition to the maintenance requirements contained in [§ 232.303(b) through (d)](/cfr/49/232.303.md?p=b..d), a freight car equipped with an ECP brake system shall be inspected and repaired before being released from a shop or repair track to ensure the proper and safe condition of the following:
  - (1) ECP brake system wiring and brackets;
  - (2) ECP brake system electrical connections; and
  - (3) **Car mounted ECP brake system components.**
- (b) **Single car air brake test procedures.** Prior to placing a freight car equipped with an ECP brake system into revenue service, a railroad or a duly authorized representative of the railroad industry shall submit a procedure for conducting periodic single car air brake tests to FRA for its approval pursuant to [§ 232.17](/cfr/49/232.17.md).
- (c) Except as provided in [§ 232.303(e)](/cfr/49/232.303.md?p=e), a single car air brake test conducted in accordance with the procedure submitted and approved in accordance with [paragraph (b)](#b) of this section shall be performed by a qualified person on a freight car equipped with an ECP brake system whenever any of the events identified in [§ 232.305](/cfr/49/232.305.md) occur, except for those paragraphs identified in [paragraph (f)](#f) of this section.
- (d) A single car air brake test conducted in accordance with the procedure submitted and approved in accordance with [paragraph (b)](#b) of this section shall be performed by a qualified person on each freight car retrofitted with a newly installed ECP brake system prior to placing or using the car in revenue service.
- (e) **Modification of single car test standard.** A railroad or a duly authorized representative of the railroad industry may seek modification of the single car test standard approved in accordance with [paragraph (b)](#b) of this section. The request for modification will be handled and shall be submitted in accordance with the modification procedures contained in [§ 232.307](/cfr/49/232.307.md).
- (f) **Exceptions.** A freight car equipped with a stand-alone or dual mode ECP brake system is excepted from the single car air brake test procedures contained in [§ 232.305(a)](/cfr/49/232.305.md?p=a). A freight car equipped with a stand-alone ECP brake system is excepted from the single car test requirements contained in [§ 232.305(b)(2)](/cfr/49/232.305.md?p=b-2).
- (g) For purposes of paragraphs [(c)](#c) and [(d)](#d) of this section, if a single car air brake test is conducted on a car prior to June 15, 2009, pursuant to the then existing AAR standards, it shall be considered the last single car air brake test for that car, if necessary.

## Notes

### Source

Source: 73 FR 61553, Oct. 16, 2008, unless otherwise noted.

### 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.