A comprehensive development agreement (CDA) is a contract between a private company and a public agency to perform different tasks for transportation projects. These tasks can be combinations of design, development, finance, construction, maintenance, repair, and operation. A CDA may be used for toll projects, improvement projects that include both tolled and non-tolled options, improvement projects in which a private entity has an interest, or improvement projects financed wholly or partly with private activity bonds. A state highway under a CDA with a private entity is public property.