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MASSACHUSETTS MUTUAL LIFE INSURANCE COMPANY
1295 State Street
Springfield, Massachusetts 01111-0001
May 5, 1998
Securities and Exchange Commission
450 Fifth Street, N.W.
Washington, D.C. 20549
Re: MML Series Investment Fund - Registration No. 2-39334
File No. 811-2224
Rule 497(j) Certification
Dear Commissioners:
On behalf of MML Equity Fund, MML Managed Bond Fund, MML Money Market Fund, MML
Blend Fund and MML Equity Index Fund (the "Funds"), five of the series of MML
Series Investment Fund (the "Trust"), I am hereby filing a certification
pursuant to paragraph (j) of Rule 497 under the Securities Act of 1933, as
amended. In this regard, I certify that each of (1) the form of Prospectus and
Statement of Additional Information for MML Equity Fund, MML Managed Bond Fund,
MML Money Market Fund and MML Blend Fund that would have been filed under
paragraph (c) of Rule 497 and (2) the form of Prospectus and Statement of
Additional Information for MML Equity Index Fund that would have been filed
under paragraph (c) of Rule 497 would not have differed from that contained in
Post-Effective Amendment No. 39 to the Trust's Registration Statement on Form
N-1A (Amendment No. 24 to the Trust's Registration Statement under the
Investment Company Act of 1940), the most recent Post-Effective Amendment filed
by the Trust relating to the Funds. Post-Effective Amendment No. 39 to the
Trust's Registration Statement was filed electronically with the Securities and
Exchange Commission on April 30, 1998 and became effective on May 1, 1998.
If you have any questions regarding this filing, please call the undersigned at
(413) 744-5401.
Respectfully submitted,
/s/ John E. Deitelbaum
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John E. Deitelbaum
Counsel
