CERTIFICATIONS PURSUANT TO SECTION 906
EX-99.906CERT


                                  CERTIFICATION

R. Jay Gerken, Chief Executive Officer, and Andrew B. Shoup, Chief
Administrative Officer of The Travelers Series Trust - Zero Coupon Bond Fund
Portfolio Series 2005 (the "Registrant"), each certify to the best of his
knowledge that:

      1. The Registrant's periodic report on Form N-CSR for the period ended
June 30, 2004 (the "Form N-CSR") fully complies with the requirements of section
15(d) of the Securities Exchange Act of 1934, as amended; and

      2. The information contained in the Form N-CSR fairly presents, in all
material respects, the financial condition and results of operations of the
Registrant.


                                             
Chief Executive Officer                         Chief Administrative Officer
The Travelers Series Trust -                    The Travelers Series Trust -
Zero Coupon Bond Fund Portfolio Series 2005     Zero Coupon Bond Fund Portfolio Series 2005


/s/ R. Jay Gerken                               /s/ Andrew B. Shoup
- -------------------------------------------     -------------------------------------------
R. Jay Gerken                                   Andrew B. Shoup
Date: September 9, 2004                         Date: September 9, 2004


This certification is being furnished to the Securities and Exchange Commission
solely pursuant to 18 U.S.C. Section 1350 and is not being filed as part of the
Form N-CSR with the Commission.