SI , ▁etc .) The ▁intern ship ▁program ▁allows ▁the ▁div em aster ▁candidate ▁to ▁not ▁only ▁complete ▁the ▁minimum ▁learning ▁requirements , ▁but ▁to ▁also ▁" intern " ▁and ▁practice ▁what ▁has ▁been ▁learned . ▁ ▁Pr ere quis ites ▁for ▁training ▁ ▁P AD I ▁and ▁S DI ▁Div em aster ▁candidates ▁must ▁have ▁reached ▁the ▁following ▁minimum ▁requirements ▁prior ▁to ▁their ▁div em aster ▁training : ▁ ▁Advanced ▁Open ▁Water ▁D iver ▁cert ification ▁( or ▁qual ifying ▁cert ification ▁from ▁another ▁training ▁organization ) ▁ ▁Res cue ▁D iver ▁cert ification ▁( or ▁qual ifying ▁cert ification ▁from ▁another ▁training ▁organization ) ▁ ▁First ▁A id ▁& ▁C PR ▁training ▁( pre fer ably ▁with ▁autom ated ▁external ▁def ibr ill ator ▁( A ED ) ▁training ) ▁▁ 4 0 ▁logged ▁div es ▁▁ ▁Sub mit ▁a ▁medical ▁statement ▁signed ▁by ▁a ▁phys ician ▁within ▁the ▁last ▁ 1 2 ▁months . ▁ ▁N ASE ▁requires ▁div em aster ▁candidates ▁to ▁also ▁have ▁demonstrated ▁compet ency ▁in ▁physics , ▁phys i ology , ▁skills ▁and ▁environment , ▁d ive ▁planning ▁and ▁equipment ▁prior ▁to ▁entering ▁a ▁program . ▁▁▁ ▁P AD I ▁Div em aster ▁candidates ▁must ▁have ▁completed ▁ 6 0 ▁logged ▁div es ▁prior ▁to ▁cert ification . ▁ ▁NA UI ▁ ▁Div em aster ▁is ▁a ▁NA UI ▁leadership - level ▁cert ification ▁between ▁Ass istant ▁Inst ruct or ▁and ▁Inst ruct or , ▁in ▁contrast ▁to ▁ag encies ▁such ▁as ▁P AD I ▁that