Based on the Construction State Law Matrix, the maps below show which states, as well as the District of Columbia and Puerto Rico, permit Design-Build contracting on public projects under state law for vertical and horizontal construction projects. More detailed information can be accessed for subscribers to the Matrix here. Information is not intended to convey legal advice and is subject to both change and interpretation. Legal counsel should be consulted before taking action on such information. Information current as of October 15, 2013. Questions regarding these maps can be directed to Sarah Gallegos at email@example.com.