Can a parenting time order be varied because of an open protection concern raised by a children's aid society?

Yes - either parent can bring a motion to change, asking the family court to vary an existing parenting time order because of a protection concern raised by a children's aid society, as long as they can show a material change in circumstances since the order was made. A credible CAS concern about a child's safety in one parent's care is generally the kind of development that can support such a motion, particularly where urgent action is needed.

If the situation is genuinely urgent, a parent can ask for the motion to be heard on an expedited basis rather than waiting for the normal schedule, though courts still expect real evidence of risk, not just an unverified allegation. The court will look at what the concern actually is, how credible and current it is, and what change to the existing schedule - anything from added conditions to a temporary suspension of unsupervised time - would actually address the risk while the underlying issue is sorted out, whether that's through the CAS process, the family case, or both. Because timing and evidence both matter here, get legal advice promptly rather than waiting to see what the society does on its own.