A C182 pilot reported that he UNKN0WINGLY violated the dc ADIZ.

Attributes
ACN	577764
Time
Date	200303
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : bwi.airport
State Reference	MD
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Skylane 182/RG Turbo Skylane/RG
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Flight Plan	None
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 7 flight time total : 1000 flight time type : 200
ASRS Report	577764
Person 2
Function	other personnel other
Events
Anomaly	airspace violation : entry non adherence : published procedure non adherence : far
Independent Detector	other other : 2
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation
Situations
Airspace Structure	class b : bwi.b special use : dcadiz.othersua

Narrative:

First leg: departed 29N to cge. Full stop (uneventful). Second leg: departed cge, north along east side of chesapeake bay at 1000 ft to C and D canal, then turned east to summit (evy), full stop. When entering the ZZZ govt office, I was told I busted the tfr around bwi/dc and to call them. I stayed away from bwi class B airspace just in case it went down to the surface, but I did not know it included the mode C veil. I had not called millville FSS to check NOTAMS.

Original NASA ASRS Text

Title: A C182 PLT RPTED THAT HE UNKN0WINGLY VIOLATED THE DC ADIZ.

Narrative: FIRST LEG: DEPARTED 29N TO CGE. FULL STOP (UNEVENTFUL). SECOND LEG: DEPARTED CGE, N ALONG E SIDE OF CHESAPEAKE BAY AT 1000 FT TO C AND D CANAL, THEN TURNED E TO SUMMIT (EVY), FULL STOP. WHEN ENTERING THE ZZZ GOVT OFFICE, I WAS TOLD I BUSTED THE TFR AROUND BWI/DC AND TO CALL THEM. I STAYED AWAY FROM BWI CLASS B AIRSPACE JUST IN CASE IT WENT DOWN TO THE SURFACE, BUT I DID NOT KNOW IT INCLUDED THE MODE C VEIL. I HAD NOT CALLED MILLVILLE FSS TO CHK NOTAMS.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.