Suggestion: this coding system should be up to the Chair to manage and make sure threads are following it I can see new legislators being intimidated that to create a new bill they have to create some strange arcane codename for it, and having one central authority manage it will probably make mistakes in numbering less likely.

We could test it out as something the Chair manages for a bit to work out any flaws or changes before putting it into law, since putting it in law is not strictly necessary.