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Exhibit 31

Rule 13a-14(a)/15d-14(a) Certifications

I, Paul D. Carrico, certify that:

Date: February 28, 2013   /s/ PAUL D. CARRICO

Paul D. Carrico
President, Chief Executive Officer and Director
   

Page 141 of 144


I, Gregory C. Thompson, certify that:

Date: February 28, 2013   /s/ GREGORY C. THOMPSON

Gregory C. Thompson
Chief Financial Officer and Chief Accounting Officer
   

Page 142 of 144




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Rule 13a-14(a)/15d-14(a) Certifications