We do lots of FA systems, but all are started up and tested(with us) by the techs from the FA company. They make out the papers and we turn them over to the owners. These systems are all designed by engineers, then a riser is drawn by the FA supplier, and finally we install as per this. Perhaps if you design a system off the shelf and there are no techs or engineers involved there are requirements in place to make sure the system is adequate. Not everyone is an engineer.