As it stands, the coordinating amendments for Bill C-52 make sure that any changes that are made to section 31 of the Railway Safety Act through Bill C-627 are dovetailed with those in Bill C-52. Any changes made with respect to this amendment would have to be later coordinated with Bill C-52 as well, so it would create some complexity there.
On March 31st, 2015. See this statement in context.