Here's what you need to know about the return of O-Train service on the full Confederation Line

The O-Train is running the full length of the Confederation Line today, as service resumes following a four-week shutdown after a bearing issue was discovered on one train.

The O-Train is running the full length of the Confederation Line today, as service resumes following a four-week shutdown after a bearing issue was discovered on one train.

OC Transpo says single-car service will be running between Blair and Tunney's Pasture stations as part of the return-to-service plan, while R1 bus service will continue to operate today.

"Testing was successfully conducted over the weekend to confirm the work and the system’s readiness to safely welcome customers," Transit Services general manager Renee Amilcar said in a statement announcing the return-to-service.

The O-Train was abruptly shut down during the afternoon commute on July 17 after the bearing issue was found during a routine inspection. Since then, Rideau Transit Group inspected all 44 light-rail vehicles, adjusted the restraining rails at eight locations between Tunney's Pasture and Blair stations and began work to replace the front and trailing wheel hub assemblies on all vehicles entering service.

"OC Transpo, together with Transportation Resource Associates (TRA), have conducted a final review of RTG’s documentation to confirm that the requirements for the restart of full Line 1 service have been met," Amilcar said Sunday evening.

"These documents have been provided to the Interim City Manager, with a recommendation to resume service. The City Manager is satisfied that the regulatory regime is in compliance, and has agreed with the recommendation to resume service on August 14, at 5 a.m."

Some transit riders are happy the trains will be back in service.