The issue is that imports are dealt with by one agency and labelling by another agency and, in order to implement this, it requires input all the way from the Canada Border Agency to DFO to CFIA. Right now, it really needs to be a larger group that comes together to figure out how to tackle it, because there isn't the regulatory or jurisdictional ability for any one department to address this.
On May 15th, 2019. See this statement in context.