All projects will comply with TxDOT policy to protect, preserve and, when practicable, enhance the environment. For construction projects, environmental concerns should be identified early in the project during the Preliminary Engineering and Design phase so any mitigation may be addressed and accurately reflected in the PS&E documents using the appropriate form [environmental permits, issues and commitments (EPIC)]. of this Manual and the provide the associated federal and state regulations, required practices, and LG and TxDOT responsibilities.