MDA Adds Information Solution For Local Authorities In The UK

Richmond, B.C. - MacDonald, Dettwiler and Associates Ltd. (TSX: MDA), a provider of essential information solutions, announced today that it has launched an additional electronic information solution for Local Authorities in the United Kingdom to replace the existing manual process for sending and receiving search information between County Councils and their District Councils.

MDA is the provider of the National Land Information Service (NLIS) in the UK used by solicitors to access authoritative information held by Local Authorities on all properties in England and Wales. The new information solution, which is built upon MDA's successful NLIS infrastructure, will connect the District and County Councils electronically through the proven NLIS interface. It replaces the existing slow and expensive manual process that uses fax, mail and courier services for sending and receiving property search information between County and District Councils.

"The solution improves customer response times and helps prepare the Districts and Counties for the Home Information Pack era when reduced turnaround times for search information are expected from Local Authorities" said Peter Stibrany, General Manager of NLIS Hub. We plan to extend this transaction based service to other Local Authorities and to add new features in the coming months."

After initially piloting the service in five County Councils and 16 of their Districts, the service went live on Monday, 6 February 2006 with Lincolnshire County Council. The Counties involved in the pilot were Devon, Dorset, East Sussex, Hampshire and Lincolnshire.

About MDA

MDA provides advanced information solutions that capture and process vast amounts of data, produce essential information, and improve the decision making and operational performance of business and government organizations worldwide.

Focused on markets and customers with strong repeat business potential, MDA delivers a broad spectrum of earth and space based information solutions, ranging from complex operational systems, to tailored information services, to electronic information products.

MDA employs more than 2,700 people in locations across the United States, the United Kingdom, and Canada. The Company's common shares trade on the Toronto Stock Exchange under the symbol TSX:MDA.

Related Websites:
www.mdacorporation.com
www.nlis.org.uk

Forward-Looking Statement

This release contains forward-looking statements and information, which reflect the current view of MacDonald, Dettwiler and Associates Ltd. with respect to future events and financial performance. Any such forward-looking statements are subject to risks and uncertainties and MDA's actual results of operations could differ materially from historical results or current expectations. Additional information on these and other potential factors that could affect MDA's financial results are detailed in documents filed from time to time with the applicable Canadian securities regulatory authorities.

The Toronto Stock Exchange has neither approved nor disapproved the form or content of this release.