1. May 8, 2007 Amendments to PFC Applications 2 and 3 Maryland Aviation Administration Baltimore/Washington International Thurgood Marshall Airport Notice and Opportunity for Public Comment

2. Amendments to PFC Applications 2 and 3 Public Consultation Materials May 8, 2007 Maryland Aviation Administration Baltimore/Washington International Thurgood Marshall Airport 1 Terminology and Amendment Overview In this amendment, the Maryland Aviation Administration (MAA) proposes to: –Amend down Application 2 (94-02-C-01-BWI) by $51,466,477 (-18.1%) to reflect MAA early defeasance of the Series 1994 bonds, which minimized interest costs –Amend up Application 3 (95-03-U-00-BWI) by $674,840 (+29.8%) PFC costs of the Terminal Roadway Improvement and Expansion of BWI Fire/Rescue Facility projects increased by more than 25% –When PFC project costs increase by more than 25%, Federal Aviation Administration regulations require an opportunity for public comment MAA’s amended PFC application is summarized as follows: –PFC Level: $4.50 per eligible enplaned passenger –Estimated charge expiration date for Application 6 after amendments: December 31, 2015

3. Amendments to PFC Applications 2 and 3 Public Consultation Materials May 8, 2007 Maryland Aviation Administration Baltimore/Washington International Thurgood Marshall Airport 2 Summary of Proposed Amendments Project Previously approved use authority Proposed change Proposed amendment% chg PFC APPLICATION 94-02-C-01-BWI New International Terminal $198,863,739($45,335,821)$153,527,918(22.8%) Runway 10/28 Extension 14,872,897(1,486,507)13,386,390(10.0%) Terminal Roadway Improvements 9,828,8174,798,31814,627,13548.8% Pier C Extension 39,659,611(2,972,322)36,687,289(7.5%) Aircraft Deicing Facilities 20,571,319(6,470,145)14,101,174(31.5%) TOTAL $283,796,383($51,466,477)$232,329,906(18.1%) PFC APPLICATION 95-03-U-00-BWI Expansion of BWI Fire/Rescue Facility $2,261,000$674,840$2,935,84029.8% TOTAL $2,261,000$674,840$2,935,84029.8% Note: Projects requiring consultation are noted in italics, as the proposed change is 25% or more of the previously approved use authority.

4. Amendments to PFC Applications 2 and 3 Public Consultation Materials May 8, 2007 Maryland Aviation Administration Baltimore/Washington International Thurgood Marshall Airport 3 Projects with Opportunity for Public Comment TERMINAL ROADWAY IMPROVEMENTS Project description: This project consisted of the design and construction of improvements to the terminal access roadways at the Airport including the widening of Elm Road, reconstruction of the existing terminal mall loop roadway, and the widening of the lower-level outer roadway. Reason for amendment:This project is being amended to account for final capital costs, which increased principally due to unanticipated utility relocation expenses and updated requirements for manholes and ductbanks. EXPANSION OF BWI FIRE/RESCUE FACILITY Project description: This project consisted of the design and construction of a new Aircraft Fire/Rescue facility at the Airport. Reason for amendment:This project is being amended to account for final capital costs. The final project incorporated communication systems enhancements to interface with other MAA systems. Additionally, project costs increased due to unanticipated expenses for utility relocations.

5. Amendments to PFC Applications 2 and 3 Public Consultation Materials May 8, 2007 Maryland Aviation Administration Baltimore/Washington International Thurgood Marshall Airport 4 Public Comment Period In accordance with Federal Aviation Administration regulations, the public is given an opportunity for comment on the proposed amendments through June 7, 2007 Comments should be sent to: Mr. Jeffrey B. Williams Maryland Aviation Administration Senior Financial Analyst 901 Elkridge Landing Road Phone: (410) 859-7010 Linthicum, Maryland 21090 Fax: (410) 684-3050 E-mail: bwipfcfeedback@bwiairport.com This notice can be downloaded at http://www.bwiairport.com