49 C.F.R. § 230.65 Steam blocking view of engine crew.
Title 49 - Transportation
The steam locomotive owner and/or operator shall keep the boiler, and its piping and appurtenances, in such repair that they do not emit steam in a manner that obscures the engine crew's vision.
Title 49: Transportation
PART 230—STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS
Subpart B—Boilers and Appurtenances
Steam Leaks
§ 230.65 Steam blocking view of engine crew.