PENETRATED PROHIBITED AREA ON DEP FROM DCA.

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CLRED TO DEPART NW; NOISE ABATEMENT PROCS FOR RADAR VECTORS TO THE KENTON 271 DEG R SWANN INTXN V268 BROSS-WOODSTOWN 240 DEG R WOODSTOWN AS FILED. MAINTAIN 5000'; EXPECT 270 DEGS IN 10 MINS. DEP ON 126.55 SQUAWK XXXX. THE CLRNC WAS READ BACK AND ACKNOWLEDGED TO BE CORRECT. GND CTLR WAS CONTACTED AND WE WERE TOLD TO TAXI TO RWY 33 WHICH WE DID. WE WENT OVER OUR ROUTING AND PERFORMED THE NECESSARY CHKLISTS AND CALLED READY TO THE TWR. THE TWR TOLD US TO TAXI INTO POS ON RWY 33 AND HOLD AND THEN VERY SHORTLY THEREAFTER GAVE US A CLRNC FOR AN IMMEDIATE TKOF WHICH WE COMPLIED WITH. SHORTLY AFTER TKOF WE WERE CALLED BY THE TWR AND TOLD TO TURN RIGHT AND INTERCEPT THE RADIAL AND CONTACT DEP. I READ BACK THE CLRNC IN THE FOLLOWING MANNER: TURN RIGHT; INTERCEPT THE RADIAL AND CONTACT DEP. I HAD ANTICIPATED WE WOULD BE INTERCEPTING THE KENTON 271 DEG R; BUT THEN QUESTIONED THE PF IF HE HAD HEARD WHAT RADIAL WE WERE TO INTERCEPT AND HE SAID NO. I THEN TRIED TO IMMEDIATELY CONFIRM WHAT RADIAL WE WERE TO INTERCEPT BUT THE TWR WAS TALKING TO ANOTHER ACFT. I THEN SWITCHED TO DEP CTL AND IMMEDIATELY ASKED HIM WHICH RADIAL WE WERE TO INTERCEPT AND HE THEN ASKED ME WHAT OUR INSTRUCTIONS FROM THE TWR HAD BEEN. I RESPONDED WITH OUR CLRNC AND ASKED HIM AGAIN TO CONFIRM IF WE WERE TO INTERCEPT THE KENTON 271 DEG R. THE DEP CTLR CAME BACK WITH STANDBY AND THEN SHORTLY AFTER GAVE US RADAR VECTORS TO INTERCEPT THE KENTON 271 DEG R AS WE HAD ANTICIPATED. THE DEP CTLR AGAIN QUESTIONED US AS TO OUR INSTRUCTIONS FROM THE TWR AND I AGAIN TOLD HIM HE THANKED US FOR OUR COOPERATION AND TOLD US TO HAVE A GOOD FLT. WE ARRIVED IN HPN AND FOUND THAT THE SECRET SVC WAS ON THE PHONE AND WANTED TO TALK TO US. APPARENTLY WE HAD PENETRATED PART OF THE PROHIBITED AREA IN WASHINGTON DC AND THEY WANTED AN EXPLANATION. WE EXPLAINED THE SITUATION TO THE SECRET SVC REP AND THEY SAID THEY WERE SATISFIED AND WE WOULD PROBABLY NOT BE HEARING FROM THEM AGAIN. PERCEIVED CAUSES: ALTHOUGH A DEP NW WITH RADAR VECTOR WAS GIVEN IN THE CLRNC IT WAS CHANGED SHORTLY AFTER TKOF TO INTERCEPT A RADIAL THAT WAS UNINTELLIGIBLE TO BOTH PLTS. THIS WAS DONE DURING A HIGH WORKLOAD PERIOD AT A VERY BUSY ARPT AND CONFIRMING THE NEW CLRNC TOOK TOO MUCH TIME. THERE SEEMED TO BE A LACK OF COM BTWN THE TWR CTLR AND DEP CTLR AS DEP DID NOT KNOW WHICH RADIAL WE WERE TOLD TO INTERCEPT. HINDSIGHT TELLS ME THAT I SHOULD HAVE CONFIRMED THE RADIAL INTERCEPT WITH THE TWR INSTEAD OF DEP CTL. I THOUGHT IT WOULD BE QUICKER WITH DEP SINCE THE TWR WAS TALKING TO ANOTHER ACFT. SUGGESTED SOLUTIONS: I FEEL STRONGLY THAT A SID SHOULD BE PUBLISHED FOR DCA DEFINING OPERATIONAL PARAMETERS DURING TRANSITION FROM TKOF TO ENRTE FLT. THE PROX OF THE PROHIBITED AREA TO THE ARPT DEMANDS A STRICTLY DEFINED ROUTING SYS AND NOT ONE ON CHANGING CLRNCS THAT ARE GIVEN DURING HIGH WORKLOAD PERIODS. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: RPTR IS USING NOAA CHARTS AND DOES NOT HAVE THE COMMERCIAL CHARTS AVAILABLE. NO INFO IN NOAA ON THE NOISE ABATEMENT PROC AS ISSUED IN THE CLRNC. EXPLAINED TO THE RPTR THIS INFO IS CONTAINED IN THE ARPT/FAC DIRECTORY. HE FEELS VERY STRONGLY SOME TYPE OF SID INFO SHOULD BE AVAILABLE IN NOAA CHARTS; EITHER THE SID OR THE INSTRUMENT APCH PROC. SECRET SVC HAS NOT TAKEN ANY FURTHER ACTION.