Public comments are a standard feature of this sort of rule change. If you look closely at this press release, you'll also find a link to the accompanying Federal Register page: https://www.federalregister.gov/documents/2021/01/11/2021-00...

In the top right corner is a button marked "SUBMIT A FORMAL COMMENT." I assume that sending an email is treated identically to submitting a formal comment.

Here's more information about the rulemaking process: https://www.federalregister.gov/uploads/2011/01/the_rulemaki...