This Nodal Protocol Revision Request (NPRR) revises the Real-Time Liability Extrapolated (RTLE) and Day-Ahead Liability Extrapolated (DALE) factors used in the Counter-Party Estimated Aggregate Liability (EAL) calculations to use Settlement Point specific prices surveyed over historic calendar days both ahead and lagging the current Operating Day. It is requested that TAC provide recommendations for the values for parameters lrq and lrt in Section 16.11.4.3.1, represented by variable X, and parameters ldq and ldt in Section 16.11.4.3.2, represented by variable Y.