Do not fall into the trap of assuming that because cost of complying with the letter of an incremental regulation seems like it would low to you, that means that it does not impose a burden on business owners.

Regulations are cumulative. This is yet another thing to add to the list of notices that have to be up and yet another thing that an unaccountable city inspector in a bad mood might decide it not quite displayed prominently for their liking and fine you.

That is what businesses complain about, not the cost of each regulation, the cost of complying with all the regulations, all the time, with no way to defend yourself and no one to tell you if its enough (and defend you if someone disagrees later).