Re: banner towing
I would suggest the answer is yes and no.
Operators are prohibited unless they get a specific approval (exemption) from the authority. No doubt for the appropriate fee.
It enables the authority to:
1. Earn more money
2. Show that they are monitoring safety matters that effect the public closely, and
3. Argue that they are complying with international standards.
Well, anyway, that is how it works in my neck of the woods!