The existing clause 8 refers to a number of federal statutes that are not in BQ-5. BQ-5 would take out the Canadian Navigable Waters Act, the Canada Marine Act, and the Canada Shipping Act. Those were included because there is a national interest to ensure that not just first nations laws, but also provincial laws, don't affect shipping and so on. The idea is that federal laws would be paramount over all provincial laws, first nations laws and so on. That is the first significant part of BQ-5.
In reference to NDP-19, it would introduce a new element of consultation and co-operation into this. Right now, it's a very strict statement saying these federal laws are, in effect, paramount over any other laws that might conflict. Introducing NDP-19 would mean that the federal government has to consult and co-operate with first nations before that limitation could come into effect. It basically changes a strict paramountcy clause into a more conditional paramountcy clause, whereby the federal government must first make these consultation efforts and then the clause could potentially kick in.