# Track Safety Standards; Continuous Welded Rail (CWR)
> **Federal Railroad Administration** · Final rule; response to petition for reconsideration. · Published 2010-01-29 · Effective 2010-03-30 · 75 FR 4703
## Document
- **Document number:** 2010-1873
- **Category:** railroad-safety
- **Sub-agency:** Federal Railroad Administration
- **Federal Register citation:** 75 FR 4703
- **CFR reference:** 49 CFR 213
- **Publication date:** 2010-01-29
- **Effective date:** 2010-03-30
- **DOT docket:** Docket No. FRA-2008-0036
## Abstract

This document responds to a petition for reconsideration of FRA's final rule published on August 25, 2009, which revised the Track Safety Standards. FRA received one petition questioning the definitions of "adjusting/de-stressing" and "buckling-prone condition" as they are used with regard to continuous welded rail (CWR).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2010/01/29/2010-1873/track-safety-standards-continuous-welded-rail-cwr)
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