EXHIBIT 99.3


                  CERTIFICATION PURSUANT TO
                   18 U.S.C. SECTION 1350,
                   AS ADOPTED PURSUANT TO
        SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


In connection with the Quarterly Report of NSTAR (the
"Company") on Form 10-Q for the period ended June 30, 2002
as filed with the Securities and Exchange Commission on the
date hereof (the "Report"), I, James J. Judge, Senior Vice
President, Treasurer and Chief Financial Officer of the
Company, certify, pursuant to 18 U.S.C. section 1350, as
adopted pursuant to section 906 of the Sarbanes-Oxley Act of
2002, that to the best of my knowledge;

(1)  The Report fully complies with the requirements of
section 13(a) or 15(d) of the Securities Exchange Act of
1934; and

(2)  The information contained in the Report fairly
presents, in all material respects, the financial condition
and result of operations of the Company.



/s/  James J. Judge
James J. Judge
Senior Vice President, Treasurer
and Chief Financial Officer

August 14, 2002