Re: Well, the EU (as per ECJ opinion) begs to differ.
I'm not sure how the EU charter is drawn up, but that ECJ opinion might be moot if the Treaty is adopted.
Here in the US, once a treaty is signed by the President and adopted by the Senate, it is the Law of the Land and subordinate ONLY to the Constitution (and even that is questionable, some claim it becomes incorporated into the Constitution). So all those local regs are just some much bulldozer fodder. And if the treaty is incorporated, it could invalidate the protections as that was an interpretation which has now been superseded by the treaty.