Form 497J MORGAN STANLEY U.S. GOVE
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1095 Avenue of
the Americas +1 212 698 3500 Main +1 212 698 3599 Fax www.dechert.com
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VIA EDGAR
June 3, 2026
Securities and Exchange Commission
100 F Street, N.E.
Washington, D.C. 20549
| Re: | Morgan Stanley U.S. Government Money Market Trust |
| File Nos. 2-74980; 811-3326 |
Ladies and Gentlemen:
On behalf of Morgan Stanley U.S. Government Money Market Trust (“Registrant”) and pursuant to Rule 497(j) under the Securities Act of 1933, as amended (the “Securities Act”), I hereby certify that (i) the form of prospectus and statement of additional information contained in Post-Effective Amendment No. 63 to Registrant’s Registration Statement on Form N-1A, filed on May 29, 2026, constituting the most recent amendment to this Registration Statement (the “Amendment”), that would have been filed pursuant to Rule 497(c) under the Securities Act would not have differed from those contained in the Amendment, and (ii) the text of the Amendment was filed electronically with the Securities and Exchange Commission on May 29, 2026, accession number 0001133228-26-008561.
If you have any questions, please feel free to contact me at 212.698.3526 (tel) or 212.698.3599 (fax).
| Very truly yours, | |
| /s/ Allison Fumai | |
| Allison Fumai |