Ameristar Casinos 10-Q 2013 Q2 Quarterly report

Exhibit 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Gordon R. Kanofsky, Chief Executive Officer of Ameristar Casinos, Inc. (the “Company”), certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 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 June 30, 2013, as filed with the Securities and Exchange Commission (the “Report”), 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 Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated:	August 7, 2013	/s/ Gordon R. Kanofsky
		Gordon R. Kanofsky
		Chief Executive Officer of Ameristar Casinos, Inc.

I, Thomas M. Steinbauer, Senior Vice President of Finance, Chief Financial Officer and Treasurer of Ameristar Casinos, Inc. (the “Company”), certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 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 June 30, 2013, as filed with the Securities and Exchange Commission (the “Report”), 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 Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated:	August 7, 2013	/s/ Thomas M. Steinbauer
		Thomas M. Steinbauer
		Senior Vice President of Finance, Chief Financial Officer and Treasurer (Principal Financial and Accounting Officer) of Ameristar Casinos, Inc.

This certification accompanies the Report pursuant to §906 of the Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the Sarbanes-Oxley Act of 2002, be deemed filed by the Company for purposes of §18 of the Securities Exchange Act of 1934, as amended.