▁rate ▁div em aster ▁as ▁the ▁lowest ▁level ▁of ▁leadership ▁qual ification . ▁A ▁NA UI ▁Div em aster ▁may ▁organ ize ▁and ▁conduct ▁div es ▁for ▁cert ified ▁divers ▁and ▁is ▁qualified ▁to ▁assist ▁active - status ▁NA UI ▁Inst ruct ors ▁on ▁diver ▁training ▁courses . ▁ ▁NA UI ▁provides ▁a ▁core ▁of ▁leadership - level ▁skills ▁and ▁knowledge ▁in ▁the ▁NA UI ▁Master ▁Sc uba ▁D iver ▁and ▁NA UI ▁Sc uba ▁Res cue ▁D iver ▁courses , ▁which ▁are ▁necessary ▁pr ere quis ites ▁for ▁all ▁NA UI ▁leadership ▁programs . ▁Div em aster ▁candidates ▁who ▁offer ▁equivalent ▁cert ification ▁must ▁still ▁pass ▁the ▁NA UI ▁Master ▁Sc uba ▁D iver ▁written ▁exam ination . ▁Div em aster ▁candidates ▁must ▁either ▁hold ▁a ▁NA UI ▁Ass istant ▁Inst ruct or ▁qual ification , ▁or ▁have ▁a ▁minimum ▁of ▁ 6 0 ▁logged ▁open ▁water ▁div es ▁demonstr ating ▁varied ▁environment , ▁depth ▁and ▁activities , ▁as ▁well ▁as ▁waters k ills ▁equal ▁to ▁those ▁expected ▁of ▁an ▁Ass istant ▁Inst ruct or . ▁ ▁Hold ing ▁a ▁NA UI ▁Div em aster ▁certificate ▁is ▁one ▁of ▁three ▁ways ▁in ▁which ▁the ▁diver ▁cert ification ▁requirements ▁for ▁a ▁NA UI ▁Inst ruct or ▁Training ▁Cour se ▁may ▁be ▁met . ▁ ▁References ▁ ▁Category : D iving ▁qual ifications ▁Category : Under water ▁work <0x0A> </s> ▁Ch and ras he k har ▁A tr am ▁( born ▁ 1 ▁October ▁ 1 9 8 3 ) ▁is ▁an ▁Indian ▁cr