Yes, certificates are reuiqred for young guns. Or if you have a vaild drivers licence, that will do (from those 16 & 17).
As for the ID's we do not do 1 event Id's. Since we are a NPPL Feeder Series, we are required by contract to have all players purcahse a valid NPPL/GPL Id. The ID will be valid for the entire 2005 season of the GPL and NPPL as well as other NPPL Feeder Series events.