▁( a ) ▁shall ▁const itute ▁a ▁branch ▁of ▁the ▁land ▁and ▁naval ▁forces ▁of ▁the ▁United ▁States , ▁( b ) ▁shall , ▁to ▁the ▁extent ▁pres cribed ▁by ▁reg ulations ▁of ▁the ▁President , ▁be ▁subject ▁to ▁the ▁Un iform ▁Code ▁of ▁Military ▁Justice ▁[ 1 0 ▁U . S . C . ▁ 8 0 1 ▁et ▁seq . ], ▁and ▁( c ) ▁shall ▁continue ▁to ▁operate ▁as ▁part ▁of ▁the ▁Service ▁except ▁to ▁the ▁extent ▁that ▁the ▁President ▁may ▁direct ▁as ▁Commander ▁in ▁Chief . ▁ ▁W arr ant ▁officers ▁The ▁commission ed ▁corps ▁is ▁author ized ▁to ▁use ▁war rant ▁officer ▁ranks ▁W - 1 ▁to ▁W - 4 ▁under ▁the ▁U . S . ▁Code ▁of ▁law , ▁but ▁does ▁not ▁currently ▁use ▁these ▁ranks . ▁ ▁Re ady ▁Reserve ▁Corps ▁of ▁the ▁Public ▁Health ▁Service ▁Commission ed ▁Corps ▁ ▁The ▁Aff ord able ▁Care ▁Act ▁( AC A ), ▁signed ▁by ▁President ▁Ob ama ▁on ▁ 2 3 ▁March ▁ 2 0 1 0 , ▁established ▁the ▁Re ady ▁Reserve ▁Corps ▁as ▁the ▁new ▁sur ge ▁capacity ▁for ▁the ▁Commission ed ▁Corps ▁of ▁the ▁U . S . ▁Public ▁Health ▁Service . ▁In ▁addition , ▁all ▁Reserve ▁Corps ▁officers ▁who ▁were ▁serving ▁on ▁extended ▁active ▁duty ▁on ▁ 2 3 ▁March ▁ 2 0 1 0 , ▁were ▁converted ▁to ▁Reg ular ▁Corps ▁officers . ▁The ▁same ▁legisl ation ▁also ▁abol ished ▁the ▁In active ▁Reserve ▁Corps ▁( IR C ) ▁on ▁ 2 3