COMMITMENT AMOUNT INCREASE REQUEST May23, 2016

In accordance with the Credit Agreement, the Borrower hereby requests that the Administrative Agent consent to an increase in the aggregate Revolving Credit Commitments (the “Commitment Amount Increase”), in accordance with Section 1.15 of the Credit Agreement, to be effected by an increase in the Revolving Credit Commitment of BMO Harris Bank N.A., Bank of America, N.A., Wells Fargo N.A., and PNC Bank National Association (each, an “Increasing Lender”). Capitalized terms used herein without definition shall have the same meanings herein as such terms have in the Credit Agreement.

After giving effect to such Commitment Amount Increase, the Revolving Credit Commitment of each Increasing Lender shall be as set forth opposite such Increasing Lender’s name below:

Pursuant to Section 11.9 of the Credit Agreement, the Administrative Agent hereby designates each of Bank of America, N.A. and Wells Fargo Bank, N.A. as Joint Lead Arrangers.

THIS AGREEMENT SHALL BE DEEMED TO BE A CONTRACTUAL OBLIGATION UNDER, AND SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF ILLINOIS.

The Commitment Amount Increase shall be effective when the executed consent of the Administrative Agent is received or otherwise in accordance with Section 1.15, of the Credit Agreement, but not in any case prior to May 23, 2016. It shall be a condition to the effectiveness of the Commitment Amount Increase that all expenses referred to in Section 1.15 of the Credit Agreement shall have been paid.

The Borrower hereby certifies that no Default or Event of Default has occurred and is continuing.

Please indicate the Administrative Agent’s consent to such Commitment Amount Increase by signing the enclosed copy of this letter in the space provided below.