There are important changes that Bill C-64 introduces when a wreck is identified. In the past a salvor could get in there already before notifying the receiver of wreck. Now they cannot touch the wreck before going to the receiver of wreck and getting the okay to do so. We have built into the new legislation a slowed-down approach that would help assess whether or not there's an issue here that needs to be addressed.
On March 19th, 2018. See this statement in context.