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Public design-build projects can only happen if the process is authorized by law. When DBIA was founded in 1993, only three states authorized design-build on public projects. Within ten years design-build was authorized in some fashion in 42 states and the District of Columbia. Today, DBIA members can use design-build for public projects in some form in all fifty states, and a majority of states permit design-build for all agencies for all types of design and construction. ​For more maps, click on the general authorization map below: 


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