Maximus (MMS) 10-Q 2010 Q2 Quarterly report

EXHIBIT 32.1

Section 906 CEO Certification

I, Richard A. Montoni, Chief Executive Officer of MAXIMUS, Inc. (the “Company”), do hereby certify, under the standards set forth in and solely for the purposes of 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

1.     The Quarterly Report on Form 10-Q of the Company for the period ended March 31, 2010 (the “Quarterly Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. Section 78m or 78o(d)); and

2.     The information contained in the Quarterly Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated:  May 6, 2010

/s/ Richard A. Montoni

Richard A. Montoni

Chief Executive Officer