The TTC is allowing some of its staff members to wear hockey jerseys on Thursday as part of Jersey Day, a Canada-wide commemoration of the 15 people killed when a tractor-trailer smashed into a bus carrying the Humboldt Broncos junior hockey team in Saskatchewan.

Last Friday’s crash killed the bus driver along with 14 members of the team: two of the team’s coaches, 10 players, a statistician, and the team’s play-by-play announcer.

In response, several B.C. hockey moms started Jersey Day as a way for Canadians to come together and mourn for those who died or were injured in the crash.

“Customers may see operators and station employees wearing team jerseys over their uniforms in support of the initiative,” reads a statement from the TTC. It goes on to say that TTC special constables and fare inspectors will still be in uniform, but can wear a green ribbon, instead.

Employees will remove the hockey jerseys over their uniforms if an emergency occurs, the TTC added.