Certainly the advantages in CUSMA are that there are specific avenues provided for workers to be able to make labour complaints if a company is reducing their standards, and the burden of proof is shifted. In previous labour agreements, you had to prove that it was affecting trade, that somehow these labour or environmental violations were happening in a way that affected trade and investment.
In CUSMA, the burden of proof has shifted to where you have to prove that it's not affecting trade, because it's an almost impossible bar to get to. That one piece would be the biggest shift, I think.