EXHIBIT 34.6 

Report of Independent Registered Public Accounting Firm 

The Board of Directors 

U.S. Bank National Association 

We have examined management’s assertion, including the accompanying Report on Assessment of Compliance With Applicable Servicing Criteria, that U.S. Bank National Association (the“Company”) complied with the servicing criteria set forth in Item 1122 (d) of the Securities and Exchange Commission’s Regulation AB for the Corporate Trust Asset Backed Securities Platform (the “Platform”), forwhich the Company provides document custody services, as of December 31, 2012, and for the period from January 1, 2012 through December 31, 2012, except for servicing criteria 1122 (d)(1)(i), 1122 (d)(1)(iii), 1122 (d)(2)(i)-(vii),1122 (d)(3)(i)-(iv), and 1122 (d)(4)(iv-(xv), which the Company has determined are not applicable to the activities performed by them with respect to the servicing platform covered by this report. Management is responsible for the Company’scompliance with those servicing criteria. Our responsibility is to express an opinion on management’s assertion about the Company’s compliance with the servicing criteria based on our examination. 

Our examination was conducted in accordance with attestation standards established by the American Institute of Certified Public Accountants, as adoptedby the Public Company Accounting Oversight Board (United States) and, accordingly, included examining, on a test basis, evidence about the Company’s compliance with the applicable servicing criteria and performing such other procedures as weconsidered necessary in the circumstances. Our examination included testing of less than all of the individual asset backed transactions and securities that comprise the Platform, testing of less than all of the servicing activities related to thePlatform, and determining whether the Company processed those selected transactions and performed those selected activities in compliance with the servicing criteria. Furthermore, our procedures were limited to the selected transactions andservicing activities performed by the Company during the period covered by this report. Our procedures were not designed to determine whether errors may have occurred either prior to or subsequent to our tests that may have affected the balances oramounts calculated or reported by the Company during the period covered by this report for the selected transactions or any other transactions. Although the Company is responsible for assessing compliance with Item 1122 (d)(1)(ii) of RegulationAB, there were no servicing activities performed by the Company during the period from January 1, 2012 through December 31, 2012, that required these servicing criteria to be complied with. We believe that our examination provides areasonable basis for our opinion. Our examination does not provide a legal determination on the Company’s compliance with the servicing criteria. 

In our opinion, management’s assertion that the Company complied with the aforementioned servicingcriteria as of December 31, 2012, and for the period from January 1, 2012 through December 31, 2012, for the Corporate Trust Asset-Backed Securities Platform is fairly stated, in all material respects. 

/s/Ernst & Young LLP 

Minneapolis, Minnesota 

February 28, 2013