CX-033273: 221-H Upgrade Shielding Door Permissive Control Circuits for Railroad Tunnel, Hot Crane Maintenance Area, and All Remaining Permissive Controls

Design and install new stand-alone permissive circuits for Safety Significant (SS) portions of the door scheme along with all the remaining permiss…

Office of NEPA Policy and Compliance

February 19, 2025
minute read time

Design and install new stand-alone permissive circuits for Safety Significant (SS) portions of the door scheme along with all the remaining permissive controls.