OTTAWA — Three years after an Ottawa city bus collided with a passenger train, killing six people and injuring dozens more, the Canadian federal government is investigating whether it's possible and practical to develop a national standard for placing event data recorders on commercial vehicles, CBC News reports.

The Sept. 18, 2013 collision between an OC Transpo commuter bus and a Via train happened at a rail crossing, with the collision shearing off the front end of the bus and derailing the train.

This week, the federal department in charge of Canada's transportation policies put forth a request for proposals for someone to study whether developing a standard for so-called black boxes is feasible. The contractor, the request noted, will undertake "a thorough review" of what systems are currently available; current international standards; and technical and scientific research on the accuracy, reliability, and limitations of commercial event data recorders. For the full story, click here.