Attached files

file filename
10-K - FORM 10-K - Otter Tail Corpc56502e10vk.htm
EX-32.2 - EX-32.2 - Otter Tail Corpc56502exv32w2.htm
EX-21.A - EX-21.A - Otter Tail Corpc56502exv21wa.htm
EX-31.2 - EX-31.2 - Otter Tail Corpc56502exv31w2.htm
EX-31.1 - EX-31.1 - Otter Tail Corpc56502exv31w1.htm
EX-12.1 - EX-12.1 - Otter Tail Corpc56502exv12w1.htm
EX-24.A - EX-24.A - Otter Tail Corpc56502exv24wa.htm
EX-23.A - EX-23.A - Otter Tail Corpc56502exv23wa.htm
         
Exhibit 32.1
CERTIFICATION PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
In connection with the Annual Report of Otter Tail Corporation (the “Company”) on Form 10-K for the period ended December 31, 2009 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, John D. Erickson, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:
  1.   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.
         
     
  /s/ John D. Erickson    
  John D. Erickson   
President and Chief Executive Officer
February 26, 2010