SHIPPER ASSIGNED RAILCAR(S)

Specific empty railcar(s) assigned to a shipper for their exclusive use. Also known as a railcar “Pool” which is a code applied to specific railcars through Railinc to provide default movement instructions to return railcars to a designated Railroad.

RSSM

Rail Security-Sensitive Materials from one or more of the categories and quantities of hazardous materials set forth in 49 C.F.R. §1580.100(b), including: A railcar containing more than 2,268 kg (5,000 lbs) of a Division 1.1, 1.2, or 1.3 (explosive) material, as...