The amendment text is the text that precedes it in the purpose of the act. Perhaps if I read that, it will put it in context, because it's not actually referring to ports at all, it's referring to the act. This is about section 4, under the purpose of the act. It states:
In recognition of the significance of marine transportation to Canada and its contribution to the Canadian economy, the purpose of this Act is to
It would then carry on with:
manage the marine infrastructure and services in a commercial manner that encourages, and takes into account, input from users, Indigenous peoples and the community in which a port or harbour is located or in proximity to which vessels are regularly anchored.
It's talking more about the government's responsibility and the minister's responsibility, and less about the ports' responsibility specifically. I know there are other parts of the act that relate specifically to the jurisdiction and activities of ports, but I think the purpose is broader than just ports. It's actually all marine infrastructure and services.