Yes. That information would be part of the education, outreach, and awareness-raising that the labour program inspectors would do with workers and employers should these changes be implemented.
I'd like to highlight one other thing, and I think it's very relevant to this because you've identified a very important question around confidentiality. It's important to remember that federally regulated private sector employers are subject to the Personal Information Protection and Electronic Documents Act, known as PIPEDA to its friends.
Under the legislation, an employer must obtain an individual's consent when they collect, use, or disclose personal information. The business must provide assurance that the information will be protected by appropriate standards. The reason there aren't more details about this in the code is that this other legislation applies across the code, or at least with respect to part III.