CITING DISTR FROM LATE RWY CHANGE; CL65 INBOUND TO ATL; FAILS TO REDUCE TO 250 KIAS BELOW 10000 FT.

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DURING THE APCH PHASE OF FLT INTO ATL ON THE HONIE 3 ARR; ATC INSTRUCTED US TO CROSS THE TIROE INTXN AT 14000 FT AND 250 KTS. ATC ALSO TOLD US TO EXPECT AN ILS PRM TO RWY 28. APPROX 1-2 NM FROM THE TIROE INTXN; ATC INSTRUCTED US TO DEPART THE TIROE INTXN ON A HDG OF 030 DEGS AND TO NOW EXPECT AN ILS PRM APCH TO RWY 26R. WE COMPLIED WITH ATC'S INSTRUCTIONS AND QUICKLY RELOADED THE ILS FOR RWY 26R INTO THE FMS AND BRIEFED THE NEW APCH. JUST AFTER PASSING THE TIROE INTXN; ATC ASKED FOR OUR INDICATED AIRSPD. WE REPLIED THAT WE WERE AT 290 KIAS AND SLOWING TO 250 KIAS. ATC THEN ASKED IF WE WERE ASSIGNED 250 KIAS AFTER TIROE. WE ADVISED ATC THAT WE WERE; AND WE WERE; SLOWING TO 250 KIAS. A FACTOR THAT LED TO THIS AIRSPD DEV WAS THE FACT THAT OUR PLANNED APCH AND ARR WAS CHANGED JUST BEFORE THE TIROE INTXN; CREATING A HIGH WORKLOAD WHEN IT WAS NOT EXPECTED. LAST MIN RWY CHANGES HAVE BECOME COMMON SINCE A 5TH RWY AND RNAV ARRS HAVE BEEN IMPLEMENTED IN ATL. ALTHOUGH THIS DOES INCREASE THE POTENTIAL FOR A HIGHER RATE OF ATC DEVS; I HAVE NOTICED MANY PRIMARY ARPTS IN CLASS B AIRSPACE UTILIZE LAST MIN RWY CHANGES; SO INCREASED VIGILANCE TO ATC INSTRUCTIONS ALSO HAVE TO BE UTILIZED BY FLT CREWS.