49 C.F.R. § 174.86 Maximum allowable operating speed.
Title 49 - Transportation
For molten metals and molten glass shipped in packagings other than those prescribed in §173.247 of this subchapter, the maximum allowable operating speed may not exceed 15 mph for shipments by rail. [Amdt. 174–69, 56 FR 49990, Oct. 2, 1991]
Title 49: Transportation
PART 174—CARRIAGE BY RAIL
Subpart D—Handling of Placarded Rail Cars, Transport Vehicles and Freight Containers
§ 174.86 Maximum allowable operating speed.