Specifications include, but are not limited to: The Allegheny County Airport Authority is seeking a consulting firm to provide on-call airport planning and environmental study services at Pittsburgh International and Allegheny County Airports. Typical projects can include, but are not limited to, airport master plan revisions, airport layout plan updates, property map updates, requests for modifications of standards, requests for land releases and safety area studies. Additional typical projects can involve both airport and nonairport development and can include site selections studies, site feasibility studies, site layout plans, utility and infrastructure plans, cost benefit analyses, environmental assessments, categorical exclusions, environmental audits for hazardous materials, archaeological investigations, criteria of effect reports, historic building recordations, and programmatic agreements for historic resources.