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MORGAN STANLEY US GOVERNMENT SECURITIES TRUST
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MORGAN STANLEY U.S. GOVERNMENT SECURITIES TRUST
<p class="MsoNormal" style="font-size:11.0pt;font-family:'calibri','sans-serif';margin-top:12.0pt;margin-right:0in;margin-bottom: 0in;margin-left:0in;margin-bottom:.0001pt;line-height:normal;text-autospace: none"><font style='font-size:40.0pt;font-family:"Arial","sans-serif"'>Morgan Stanley</font></p> <p class="MsoNormal" style="font-size:11.0pt;font-family:'calibri','sans-serif';margin-top:12.0pt;margin-right:0in;margin-bottom: 0in;margin-left:0in;margin-bottom:.0001pt;line-height:normal;text-autospace: none"><i><font style='font-size:9.0pt;font-family:"Arial","sans-serif"'>January 14, 2013</font></i></p> <p class="MsoNormal" style="margin-top:0in;margin-right:0in;margin-left:0in;font-size:11.0pt;font-family:'calibri','sans-serif';margin-bottom:0in;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font style='font-size:14.0pt;font-family:"Arial","sans-serif"'>Supplement</font></p> <p class="MsoNormal" align="center" style="font-size:11.0pt;font-family:'calibri','sans-serif';margin-top:8.0pt;margin-right:0in; margin-bottom:0in;margin-left:0in;margin-bottom:.0001pt;text-align:center; line-height:normal;text-autospace:none"><font style='font-family:"Arial","sans-serif"'>SUPPLEMENT DATED JANUARY 14, 2013 TO THE PROSPECTUS OF<br /> MORGAN STANLEY U.S. GOVERNMENT SECURITIES TRUST<br /> Dated April 30, 2012</font></p> <p class="MsoNormal" style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:10.0pt;line-height:115%;font-size:11.0pt;font-family:'calibri','sans-serif';"> </p>
The following table replaces the "Shareholder Fees" table with respect to Class L shares only in the section of the Prospectus entitled "Fund Summary—Fees and Expenses—Shareholder Fees," effective February 25, 2013:
Effective February 25, 2013, the 12b-1 fee for the Class L shares of the Fund will be reduced from 0.75% to 0.50%. Accordingly, the following table replaces the "Annual Fund Operating Expenses" table with respect to Class L shares only in the section of the Prospectus entitled "Fund Summary—Fees and Expenses—Annual Fund Operating Expenses," effective February 25, 2013:
The following tables replace the "Example" tables with respect to Class L shares only in the section of the Prospectus entitled "Fund Summary—Example:"
If You SOLD Your Shares:
If You HELD Your Shares:
<p class="MsoNormal" style="margin-top:0in;margin-right:0in;margin-left:0in;font-size:11.0pt;font-family:'calibri','sans-serif';margin-bottom:0in;margin-bottom:.0001pt;line-height: normal;text-autospace:none"><font style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Additionally, all references elsewhere in the</font><font style='font-size:10.0pt;font-family: "Times New Roman","serif"'> </font><i><font style='font-size:10.0pt;font-family: "Arial","sans-serif"'>Prospectus</font></i><font style='font-size:10.0pt; font-family:"Times New Roman","serif"'> </font><font style='font-size:10.0pt; font-family:"Arial","sans-serif"'>to a 12b-1 fee of 0.75% for Class L shares will be replaced with 0.50%.</font></p> <p class="MsoNormal" style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:10.0pt;line-height:115%;font-size:11.0pt;font-family:'calibri','sans-serif';"> </p>
<p class="MsoNormal" align="center" style="font-size:11.0pt;font-family:'calibri','sans-serif';margin-top:10.0pt;margin-right:0in; margin-bottom:0in;margin-left:0in;margin-bottom:.0001pt;text-align:center; line-height:normal;text-autospace:none"><font style='font-size:10.0pt;font-family:"Arial","sans-serif"'>PLEASE RETAIN THIS SUPPLEMENT FOR FUTURE REFERENCE.</font></p> <p class="MsoNormal" style="margin-top:0in;margin-right:0in;margin-left:0in;margin-bottom:10.0pt;line-height:115%;font-size:11.0pt;font-family:'calibri','sans-serif';"> </p>
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The Board of Trustees approved an amendment to the Plan of Distribution reducing the distribution and shareholder services (12b-1) fee for the Fund’s Class L shares from 0.75% to 0.50% of the average daily net assets of such Class, effective February 25, 2013. The Distribution and Service (12b-1) Fees shown in the table above have been restated to reflect such change.