I have never seen such a list as a national standard. The group fitness certifications I hold do not have it as a part of their ‘Code of Ethics’. I teach at a Wellness Center which is affiliated with a hospital, and in this environment, there are usually lists for just about anyhing. Even there I never saw such list.
What you are asking for seems to be more common sense and common courtesy, and I would think that this could be a club policy is it really needs to be regulated.