BE58 PLT DEPARTED JYO INTO THE WASH DC ADIZ PRIOR TO OBTAINING A PROPER CLRNC OR A DISCRETE XPONDER CODE.

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ON 03/MON/03 I FLEW FROM TEB TO JYO ARPT. OUR OPERATIONS USUALLY FLY TO JYO 3 TIMES A WEEK. I LEFT FROM TEB APPROX XA00; IN CLR WX WHICH WAS FORECASTED TO REMAIN THROUGHOUT THE DAY. I FLEW WITH RADAR SERVICE IN JYO WITHOUT ANY PROBS; I DID NOT HAVE FLT PLAN ON FILE. I WAS UNDER RADAR SERVICE AND RECEIVED XPONDER CODE IN FLT. AT AROUND XH10; I WAS DEP BACK TO TEB FROM JYO AND DID NORMAL PROCS AND WAS PLANNING TO DEPART FROM JYO VFR AND PICK UP A DISCRETE CODE AND CLRNC TO CLASS B AIRSPACE FROM PCT APCH WHILE AIRBORNE. I KNEW THE FLT DIDN'T REQUIRE A FLT PLAN; BUT IT DID REQUIRE A DISCRETE CODE. IT WAS A CLR DAY AND GETTING THE CLRNC IN FLT HAD BEEN THE USUAL METHOD; DUE TO LOW RADIO COVERAGE ON THE GND. I DEPARTED AROUND THAT TIME AND IMMEDIATELY AFTER AIRBORNE CONTACTED PCT APCH 125.05 TO ESTABLISH TWO-WAY RADIO COM AND OBTAIN FURTHER CLRNC TO CLIMB TO CLASS B AND ON COURSE TO TEB ARPT (NJ). AFTER TALKING WITH PCT CTLR THEY INSTRUCTED ME TO REMAIN CLR OF BRAVO AIRSPACE FOR RADAR IDENT; NORMAL PROC; PRESS IDENT AND HE ASKED IF WE WERE AROUND 3 MILES N FROM JYO AND AROUND 1200 FT. I ESTABLISHED COM AND PCT APCH IDENT US; BUT DID NOT GIVE US THE SQUAWK CODE; SO I REMAIN UNDER WASHINGTON CLASS B AIRSPACE; RATHER SOON I WAS INSTRUCTED TO CONTACT BALTIMORE APCH 128.7; I WAS ONCE AGAIN INSTRUCTED TO STAY CLR OF BRAVO; WHICH I DID. AROUND THAT TIME BRAVO STARTS AT 3500 FT. FINALLY; I RECEIVED A CODE AFTER CTLR CHANGED IN BWI APCH AND WAS INSTRUCTED TO CLB REQUESTED ALT 5500 FT AND TURN ON COURSE AROUND 065 DEGS. I WAS ASKED TO CONTACT APCH BY PHONE; I WAS PROVIDED THE NUMBER TO CONTACT AFTER LNDG. I WAS NOT AWARE AT DEP THAT TWO-WAY RADIO COM WAS NOT ENOUGH. WX WAS CLR THAT TIME AND VISIBILITY WAS UNRESTRICTED. I AM VERY SORRY ABOUT WHAT HAPPENED; AS A PROFESSIONAL PLT THIS EXPERIENCE HAS MADE ME EXTREMELY AWARE OF HOW IMPORTANT IT IS TO KEEP UP WITH THE CONSTANTLY CHANGING REQUIREMENTS OF FLT. THIS UNINTENTIONAL OVERSIGHT HAS BEEN A PAINFUL LESSON.