Grand River Transit buses could be cancelled Tuesday morning if a deal between the region of Waterloo and the union representing GRT workers is not reached by Monday evening.

UNIFOR Local 4304 is in a legal position to strike as early as 12:01 a.m. Tuesday, the region said in a release. The union represents drivers, technicians and other workers with the transit service.

In the event of a strike, drivers will finish the Monday evening schedule, a spokesperson for the union said in an email. Job action would begin with the morning service January 14, she said.

Transit service affected

If no deal is reached, GRT buses, Bus Plus and MobilityPLUS might not run.

ION train service will continue, but if there is an ION service disruption there will be no bus shuttles.

Tim Jewell, Unifor Local 4304 president, said the union does plan to maintain transportation for pre-scheduled dialysis patients.

Bus service through Kiwanis Transit will continue, according to the region.

Both the union and the region tell CBC they hope to come to an agreement by end of day Monday.