Has anyone produced or contributed to a Code of Conduct or Protocol for Volunteers - with a particular emphasis on Vaccination Station / Testing Site environment?

I'm looking to provide a simple document for our Responders to agree to that will remove the benefit of doubt and any misunderstanding with regard to banter / inappropriate comments made in jest, stepping wide of the mark etc. I'm looking to cover any issues that may have a consequence to us and how a Volunteer can make a complaint about another Volunteer or a staff member.

Any help will be much appreciated.

Many thanks

John