EX-31 Rule 13a-14(d)/15d-14(d) Certification.


I, David Nass, certify that:

1.  I have reviewed this report on Form 10-K and all reports on
    Form 10-D required to be filed in respect of the period covered by
    this report on Form 10-K of the UBS Commercial Mortgage Trust 2012-C1
    (the "Exchange Act periodic reports");

2.  Based on my knowledge, the Exchange Act periodic reports, taken as a
    whole, do not contain any untrue statement of a material fact or omit
    to state a material fact necessary to make the statements made, in
    light of the circumstances under which such statements were made, not
    misleading with respect to the period covered by this report;

3.  Based on my knowledge, all of the distribution, servicing and other
    information required to be provided under Form 10-D for the period
    covered by this report is included in the Exchange Act periodic
    reports;

4.  Based on my knowledge and the servicer compliance statements required
    in this report under Item 1123 of Regulation AB, and except as
    disclosed in the Exchange Act periodic reports, the servicers have
    fulfilled their obligations under the servicing agreements in all
    material respects; and

5.  All of the reports on assessment of compliance with servicing
    criteria for asset-backed securities and their related attestation
    reports on assessment of compliance with servicing criteria for
    asset-backed securities required to be included in this report in
    accordance with Item 1122 of Regulation AB and Exchange Act Rules
    13a-18 and 15d-18 have been included as an exhibit to this report,
    except as otherwise disclosed in this report. Any material instances
    of noncompliance described in such reports have been disclosed in
    this report on Form 10-K.

In giving the certifications above, I have reasonably relied on
Information provided to me by the following unaffiliated parties:

Wells Fargo Bank, National Association, as Master Servicer, Midland Loan
Services, a Division of PNC Bank, National Association, as Special
Servicer (prior to August 30, 2013), Rialto Capital Advisors, LLC, as
Special Servicer (on and after August 30, 2013), Deutsche Bank Trust
Company Americas, as Trustee, Certificate Administrator, and Custodian,
TriMont Real Estate Advisors Inc., as Operating Advisor, CoreLogic
Commercial Real Estate Services, Inc., as Servicing Function Participant,
National Tax Search, LLC, as Servicing Function Participant, KeyBank
National Association (as successor to KeyCorp Real Estate Capital
Markets, Inc.), as Primary Servicer, Wells Fargo Bank, National
Association, as Primary Servicer for the Trinity Centre Mortgage Loan,
Midland Loan Services, a Division of PNC Bank, National Association, as
Special Servicer for the Trinity Centre Mortgage Loan (prior to August
30, 2013), Rialto Capital Advisors, LLC, as Special Servicer for the
Trinity Centre Mortgage Loan (on and after August 30, 2013), Deutsche
Bank Trust Company Americas, as Trustee, Certificate Administrator, and
Custodian for the Trinity Centre Mortgage Loan, TriMont Real Estate
Advisors Inc., as Operating Advisor for the Trinity Centre Mortgage Loan,
CoreLogic Commercial Real Estate Services, Inc., as Servicing Function
Participant for the Trinity Centre Mortgage Loan, National Tax Search,
LLC, as Servicing Function Participant for the Trinity Centre Mortgage
Loan, KeyBank National Association (as successor to KeyCorp Real Estate
Capital Markets, Inc.), as Primary Servicer for the Poughkeepsie Galleria
Mortgage Loan, Midland Loan Services, a Division of PNC Bank, National
Association, as Special Servicer for the Poughkeepsie Galleria Mortgage
Loan (prior to August 30, 2013), Rialto Capital Advisors, LLC, as Special
Servicer for the Poughkeepsie Galleria Mortgage Loan (on and after August
30, 2013), Deutsche Bank Trust Company Americas, as Trustee, Certificate
Administrator, and Custodian for the Poughkeepsie Galleria Mortgage Loan,
TriMont Real Estate Advisors Inc., as Operating Advisor for the
Poughkeepsie Galleria Mortgage Loan, Wells Fargo Bank, National
Association, as Primary Servicer for the 1700 Market Street Mortgage
Loan, Midland Loan Services, a Division of PNC Bank, National
Association, as Special Servicer for the 1700 Market Street Mortgage Loan
(prior to August 30, 2013), Rialto Capital Advisors, LLC, as Special
Servicer for the 1700 Market Street Mortgage Loan (on and after August
30, 2013), Deutsche Bank Trust Company Americas, as Trustee, Certificate
Administrator, and Custodian for the 1700 Market Street Mortgage Loan,
TriMont Real Estate Advisors Inc., as Operating Advisor for the 1700
Market Street Mortgage Loan, CoreLogic Commercial Real Estate Services,
Inc., as Servicing Function Participant for the 1700 Market Street
Mortgage Loan, and National Tax Search, LLC, as Servicing Function
Participant for the 1700 Market Street Mortgage Loan.

    Dated:   March 28, 2014


    /s/ David Nass

    David Nass
    President
    (senior officer in charge of securitization of the depositor)