EXHIBIT 32.3

        CERTIFICATION PURSUANT TO SECTION 1350 OF CHAPTER 63 OF TITLE 18
                            OF THE UNITED STATES CODE

      I, Thomas M. O'Flynn, Chief Financial Officer of Public Service Electric
and Gas Company, to the best of my knowledge, certify that (i) the Quarterly
Report of Public Service Electric and Gas Company on Form 10-Q for the period
ended March 31, 2007 (the "Report") fully complies with the requirements of
Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and (ii) the
information contained in the Report fairly presents, in all material respects,
the financial condition and results of operations of Public Service Electric and
Gas Company.

                                  /s/ Thomas M. O'Flynn
                                ---------------------------------------------
                                  THOMAS M. O'FLYNN
                                  Public Service Electric and Gas Company
                                  Chief Financial Officer
                                  May 4, 2007