The SERC Engineering Committee Geomagnetic Disturbance Working Group will collect, maintain and share Direct Current network modeling data of facilities necessary for interconnected systems to adequately conduct Geomagnetic Disturbance event assessments. Furthermore, the Geomagnetic Disturbance Working Group will guide and assist Transmission Planners and Planning Coordinators with the implementation of 1) North American Electric Reliability Corporation (NERC) Reliability Standard TPL-007, “Transmission System Planned Performance for Geomagnetic Disturbance Events,” and 2) NERC Rules of Procedure Section 1600 Geomagnetic Disturbance Data Request.