49 C.F.R. § 230.83 Cylinder cocks.
Title 49 - Transportation
Each steam locomotive shall be equipped with cylinder cocks which can be operated from the cab of the steam locomotive. All cylinder cocks shall be maintained in a safe and suitable condition for service.
Title 49: Transportation
PART 230—STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS
Subpart C—Steam Locomotives and Tenders
Cabs, Warning Signals, Sanders and Lights
§ 230.83 Cylinder cocks.
