I am not a scientific expert who can analyze the American measures, but I can tell you that the Canadian measures meet world standards and are exceptionally good.
However, I can say that, for example, The Pew Charitable Trusts, a U.S. ENGO, in 2021, I believe, when Canada announced its measures, did note that the U.S. measures could benefit from trying to mirror some of the measures put in place in Canada. I can point that out, but I wouldn't want to be evaluating those measures myself.