CERTIFICATIONS PURSUANT TO SECTION 906
EX-99.906CERT



                                  CERTIFICATION

R. Jay Gerken, Chief Executive Officer, and Richard Peteka, Chief Financial
Officer of The Travelers Series Trust - Disciplined Mid Cap Stock Portfolio (the
"Registrant"), each certify to the best of his or her knowledge that:

1.   The Registrant's periodic report on Form N-CSR for the period ended June
30, 2003 (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 Financial Officer
The Travelers Series Trust                  The Travelers Series Trust
Disciplined Mid Cap Stock Portfolio         Disciplined Mid Cap Stock Portfolio

/s/ R. Jay Gerken                           /s/ Richard Peteka
- ---------------------------                 -------------------------
R. Jay Gerken                               Richard Peteka
Date: August 29, 2003                       Date: August 29, 2003


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.


CERTIFICATIONS PURSUANT TO SECTION 906
EX-99.906CERT



                                  CERTIFICATION

R. Jay Gerken, Chief Executive Officer, and Richard Peteka, Chief Financial
Officer of The Travelers Series Trust - Federated High Yield Portfolio (the
"Registrant"), each certify to the best of his or her knowledge that:

1.   The Registrant's periodic report on Form N-CSR for the period ended June
30, 2003 (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 Financial Officer
The Travelers Series Trust                  The Travelers Series Trust
Federated High Yield Portfolio              Federated High Yield Portfolio

/s/ R. Jay Gerken                           /s/ Richard Peteka
- ---------------------------                 ------------------------
R. Jay Gerken                               Richard Peteka
Date: August 29, 2003                       Date: August 29, 2003


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.


CERTIFICATIONS PURSUANT TO SECTION 906
EX-99.906CERT


                                  CERTIFICATION
                                  -------------

R. Jay Gerken, Chief Executive Officer, and Richard Peteka, Chief Financial
Officer of The Travelers Series Trust - Federated Stock Portfolio (the
"Registrant"), each certify to the best of his or her knowledge that:

1.   The Registrant's periodic report on Form N-CSR for the period ended June
30, 2003 (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 Financial Officer
The Travelers Series Trust                  The Travelers Series Trust
Federated Stock Portfolio                   Federated Stock Portfolio

/s/ R. Jay Gerken                           /s/ Richard Peteka
- ---------------------------                 ------------------------
R. Jay Gerken                               Richard Peteka
Date: August 29, 2003                       Date: August 29, 2003


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.






CERTIFICATIONS PURSUANT TO SECTION 906
EX-99.906CERT



                                  CERTIFICATION

R. Jay Gerken, Chief Executive Officer, and Richard Peteka, Chief Financial
Officer of The Travelers Series Trust - Lazard International Stock Portfolio
(the "Registrant"), each certify to the best of his or her knowledge that:

1.   The Registrant's periodic report on Form N-CSR for the period ended June
30, 2003 (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 Financial Officer
The Travelers Series Trust                  The Travelers Series Trust
Lazard International Stock Portfolio        Lazard International Stock Portfolio

/s/ R. Jay Gerken                           /s/ Richard Peteka
- ---------------------------                 ------------------------
R. Jay Gerken                               Richard Peteka
Date: August 29, 2003                       Date: August 29, 2003


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.



CERTIFICATIONS PURSUANT TO SECTION 906
EX-99.906CERT



                                  CERTIFICATION

R. Jay Gerken, Chief Executive Officer, and Richard Peteka, Chief Financial
Officer of The Travelers Series Trust - MFS Emerging Growth Portfolio (the
"Registrant"), each certify to the best of his or her knowledge that:

1.   The Registrant's periodic report on Form N-CSR for the period ended June
30, 2003 (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 Financial Officer
The Travelers Series Trust                  The Travelers Series Trust
MFS Emerging Growth Portfolio               MFS Emerging Growth Portfolio

/s/ R. Jay Gerken                           /s/ Richard Peteka
- ---------------------------                 ------------------------
R. Jay Gerken                               Richard Peteka
Date: August 29, 2003                       Date: August 29, 2003

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.


CERTIFICATIONS PURSUANT TO SECTION 906
EX-99.906CERT



                                  CERTIFICATION

R. Jay Gerken, Chief Executive Officer, and Richard Peteka, Chief Financial
Officer of The Travelers Series Trust - Travelers Quality Bond Portfolio (the
"Registrant"), each certify to the best of his or her knowledge that:

1.   The Registrant's periodic report on Form N-CSR for the period ended June
30, 2003 (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 Financial Officer
The Travelers Series Trust                  The Travelers Series Trust
Travelers Quality Bond Portfolio            Travelers Quality Bond Portfolio

/s/ R. Jay Gerken                           /s/ Richard Peteka
- ---------------------------                 ------------------------
R. Jay Gerken                               Richard Peteka
Date: August 29, 2003                       Date: August 29, 2003


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