My initial reaction is that I simply don't know enough about what provinces may use this for. They have procedures that could be based on a person who was acquitted of over 80 charge, but they have the BAC, or the person was charged on a basis of a BAC of 60 combined with something else, but the person's acquitted. The 60 could be a provincial issue for their licences.
Some of them have higher penalties if you've had three in five years or whatever, and they would need that record for the administration of their legislation to be connected with the person's alcohol or possibly drug abuse. I'm not in a position to say that would resolve concerns that the provinces might have.