The Tucson Airport Authority (“TAA”) invites interested, qualified firms to submit Statements of Qualifications (“SOQ”) in response to this Request for Qualifications (“RFQ”) for various as-needed Professional Services for development of both nonaeronautical land holdings and traditional airport projects at Tucson International Airport and Ryan Airfield. The categories of Professional Services are: Civil Engineering Services (including site/utility development, Traffic Transportation Engineering, and Airfield Engineering, Cost Estimating, Construction Management Services. Firms may request to be considered for as-needed services for a single professional services category, multiple categories, or all categories.