by the sounds of it this is a land based group/person or similar applying a tick sheet type check list with a view to using your operation.
As others have said you can do all the risk assessments etc your self, If it needs to be in a particular format then you can also do this.
THere are various marine based safety systems(ie ISM and Domestic safety management plan) that you could look at to make your procedures more in line with marine safety policy, but these are basicly not suitable for your type of operation. you can however look up info on the MCA Website
You could employ a marine surveyor/ consultant to look at your operation and do a safety procedures audit but I dont know of many who this for your type of operation..
Just a few thoughts really
I went alongside the carrier, I survived and didnt even get shot at!!!