The Texas Historical Commission (THC) issues this Invitation for Bid (IFB) to solicit bids for Marine Archeological Remote-Sensing Survey Equipment for use in detecting and monitoring underwater archeological sites on state public land under the jurisdiction of the Texas Historical Commission. As part of public policy as stated in the Antiquities Code of Texas, Sec. 191.002, it is the mission of the Marine Archeology Program of the Texas Historical Commission to locate, protect, and preserve submerged archeological sites, including shipwrecks. The Geometrics G882 and the Edgetech 4125P are the standard tools used to detect submerged shipwrecks sites and are in compliance with the minimum equipment standards required for archeological survey in state waters Texas Administrative Code, Title 13, Part 2, Chapter 18, Rule §28.6. This equipment is the most successful means, and often the only method, in low visibility waters such as Texas to find, and thus protect, these important and rare archeological sites.