The Texas Water Development Board (TWDB) requests responses to this Request for Qualifications (RFQ) for the award of a contract to update the Uniform Costing Model for use in the sixth cycle of Regional Water Planning and development of the 2026 Regional Water Plans and 2027 State Water Plan (the Project). The Project will include updating the most recent Uniform Costing Model to correct bugs that were discovered during the fifth cycle of planning; reflect more recent construction costs, including those resulting from increased inflation; reflect relevant updates to the regional water planning guidelines; and improve the functionality of specific modules. TWDB will consider qualifications from business entities that demonstrate the ability to complete the Project within the guidelines of this Solicitation and any applicable federal, state, and local laws, rules, and