49 C.F.R. § 230.84 Sanders.
Title 49 - Transportation
Steam locomotives shall be equipped with operable sanders that deposit sand on the rail head in front of a set of driving wheels. Sanders shall be tested at the beginning of each day the locomotive is used.
Title 49: Transportation
PART 230—STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS
Subpart C—Steam Locomotives and Tenders
Cabs, Warning Signals, Sanders and Lights
§ 230.84 Sanders.