Exhibit 99.906.CERT CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 I, Jean Bernhard Buttner, Chairman and President of the Value Line U.S. Government Securities Fund, Inc. (the "Registrant"), certify that: 1. The periodic report on Form N-CSR of the Registrant for the period ended 2/28/05 (the "Form N-CSR") fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, 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. Date: April 29, 2005 --------------- By: /s/ Jean Bernhard Buttner ------------------------------------------------ Jean Bernhard Buttner Chairman and President Value Line U.S. Government Securities Fund, Inc. CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 I, David T. Henigson, Vice President and Secretary/Treasurer of the Value Line U.S. Government Securities Fund, Inc. (the "Registrant"), certify that: 1. The periodic report on Form N-CSR of the Registrant for the period ended 2/28/05 (the "Form N-CSR") fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, 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. Date: April 29, 2005 --------------- By: /s/ David T. Henigson ------------------------------------------------ David T. Henigson Vice President and Secretary/Treasurer Value Line U.S. Government Securities Fund, Inc.