There is in the UK, the British Aikdio Board has a coaching accreditation programme that runs to 11 different courses at three levels. This covers all affiliated organisations across many styles of aikido and the coaching level 1 is a prerequisite for insurance cover under the BAB. This in turn sits under a wider scheme called Sports Coach UK. There's even an online searchable database of everyone's qualifications, pass dates and certificate numbers.
I guess this could be seen as anywhere from a bureaucratic straitjacket to a comforting level of professionalism depending on one's perspective
That's right, you guys run your insurance through your board.
Ironically, here in the states we require a college degree to baby-sit our kids; not to mention websites where you can perform "security checks" on individuals. But you got a black belt? Well, obviously we should just trust you... Where can I drop my child off to practice a violent fighting system for an hour? Ohhh? Weapons, too? Excellent. We're like a comedy skit waiting to happen.