of the LGPP Manual contains a detailed discussion of the regulations and policies for design criteria used for highway and other construction projects. The same chapter of the describes the practices for implementing established design criteria and the practices that must be followed if the local government (LG) desires to request an exception to the use of established design criteria. The design criteria selected by the LG must follow federal and state guidelines if state or federal funds are used or if the project is on the state highway system. In general, the LG must submit a design summary report to TxDOT, and TxDOT must assure the LG selects the proper functional classification and uses acceptable traffic data.