SUMMARY: This document denies a petition for reconsideration of Federal Motor Vehicle Safety Standard (FMVSS) No. 305@ ????Electric-powered vehicles; electrolyte spillage@ and electrical shock protection'' from Nissan Motor Company (Nissan) requesting the use of a megohmmeter as an alternative measurement method for the electrical isolation test procedure. Further@ this document adopts various technical corrections and clarifications to the regulatory text of FMVSS No. 305 that do not change the substance of the rule.