[en] Pressurized water reactors constructed by the Westinghouse Electric Company have for some time utilized a power distribution control strategy termed Constant Axial Offset Control, or CAOC. This technique is based on observing the integrated power generated in the upper and the lower portions of the reactor core. By maintaining a certain relationship, termed axial offset, between the two integrated power measurements within fixed bands, it is possible to avoid exceeding licensed power peaking limits. Exxon Nuclear Company has developed its version of CAOC methodology termed power distribution control (PDC). This methodology is compatible with that developed and applied by Westinghouse and is intended to enable ENC reload fuel customers to maintain the benefits of Constant Axial Offset Control. This report describes the ENC Power Distribution Control methodology and provides the supporting analysis required for its justification