Pre-Operation Testing and Modifications. Prior to the Commercial Operation Date, and after all specifications are met, Transmission Owner shall test the Transmission Owner Connection Facilities and MHVDC Connection Customer shall test the MHVDC Connection Customer Connection Facilities to ensure their safe and reliable operation up to the delivery capacity of the Point of Connection as identified in Appendix B. Each Party shall make any modifications to its Connection Facilities that are necessary as a result of such testing. MHVDC Connection Customer shall bear the cost of all such testing and modifications.