1 9 5 0 , ▁organized ▁to ▁" me et ▁the ▁bre eding , ▁compet itive ▁and ▁recre ational ▁interests ▁of ▁all ▁Arab ian ▁horse ▁own ers ", ▁and ▁also ▁maintained ▁a ▁Half - A rab ian ▁and ▁Ang lo - A rab ian ▁registry . ▁ ▁Arab ian ▁horse ▁shows ▁A HA ▁shows ▁are ▁for ▁pure bre d ▁Arab ian , ▁Half - A rab ian , ▁and ▁Ang lo - A rab ian ▁horses ▁only . ▁The ▁shows ▁consist ▁of ▁Arab ian ▁Community ▁Sh ows ▁that ▁allow ▁exhib itors ▁to ▁get ▁a ▁start ▁in ▁the ▁show ▁ring , ▁followed ▁by ▁" Class ▁A " ▁shows ▁r ated ▁by ▁the ▁United ▁States ▁E quest rian ▁Federation ▁and ▁the ▁A HA , ▁which ▁qual ify ▁rid ers ▁to ▁go ▁to ▁larger ▁regional ▁and ▁national ▁competition . ▁▁ ▁There ▁are ▁four ▁separate ▁national ▁compet itions : ▁U . S . ▁National s , ▁Sport ▁Hor se ▁National s , ▁Youth ▁National s , ▁and ▁Canadian ▁National s . ▁ ▁There ▁are ▁also ▁some ▁significant ▁non - n ational ▁shows ▁that ▁draw ▁large ▁numbers ▁of ▁horses , ▁including ▁the ▁" B uck ey e " ▁show ▁in ▁Ohio ▁and ▁the ▁Scot ts dale ▁Arab ian ▁Hor se ▁Show , ▁the ▁annual ▁show ▁of ▁the ▁Arizona ▁Arab ian ▁Hor se ▁Association . ▁ ▁The ▁U . S . ▁National s , ▁held ▁each ▁October , ▁were ▁held ▁for ▁many ▁years ▁every ▁other ▁year ▁at ▁Louis ville , ▁Kentucky ▁and ▁Al bu quer que , ▁New ▁Mexico