The Saskatchewan government is asking Ottawa to extend certain emergency grain movement regulations set to expire this summer.
The two year old provision forced the railways to extend the interswitching radius from 30 kilometers to 160 kilometers.
Interswitching commits one rail carrier to pick up cars from a shipper, then deliver them to another railway for the line haul.
Agriculture minister Lyle Stewart says extending the interswitching regulations improves competition between the two main railways for some grain elevators.
Several prairie farm groups including the Agricultural Producers Association of Saskatchewan have asked for an extension to the interswitching regulations.