Railinc delivers approximately nine million messages each day over its EDI network, including transportation waybills, advance train consists, blocking requests and responses and trip plans.

Its applications support railroads, equipment owners and rail industry suppliers along every link of the supply chain.

The company maintains the only industry-accepted version of the North American railroad industry's official code tables.

The site enables testing of freight and passenger rolling stock, vehicle and track components, and safety devices.

[4] One of the AAR's duties is to oversee the assignment of reporting marks – two to four letter codes that uniquely identify the owner of any piece of railroad rolling stock or intermodal freight transport equipment (trailers, semi-trailers, containers, etc.)