SMS Rail Lines (reporting mark SLRS) is a shortline railroad based at Pureland Industrial Park in Bridgeport, New Jersey.

The company handles all freight car delivery to businesses located within the industrial park.

SMS provides chemical off-loading equipment and transload facilities to enable businesses to receive rail freight traffic.

[6] The company plans to begin passenger excursions out of Pilesgrove Township, New Jersey by the end of 2022.

SMS also owns units built by GM's Electro-Motive Diesel and GE Transportation.