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                                   Before the

                       Federal Communications Commission

                             Washington, D.C. 20554

   In the Matter of )

   )

   Tucson Electric Power Company ) File No. EB-10-SD-0113

   Antenna Structure Registrant )

   ASR # 1007193  ) NOV No. V201032940010

   Tucson, Arizona )

   )

                              NOTICE OF VIOLATION

   Released: July  7, 2010

   By the District Director, San Diego Office, Western Region, Enforcement
   Bureau:

    1. This is a Notice of Violation ("Notice") issued pursuant to Section
       1.89 of the Commission's Rules to Tucson Electric Power Company 
       ("Tucson Electric"), registrant of antenna structure # 1007193 in
       Tucson, Arizona.

    2. On June 8, 2010, an agent of the Enforcement Bureau's San Diego Office
       inspected antenna structure # 1007193 located at 3950 East Irvington
       Road, Tucson, Arizona and observed the following violation:

     a. 47 C.F.R. S: 17.4(g): "The Antenna Structure Registration Number must
        be displayed in a conspicuous place so that it is readily visible
        near the base of the antenna structure." During the inspection, the
        agent observed that there was no antenna structure registration
        number posted at or near the base of the antenna structure.

    3. Pursuant to Section 403 of the Communications Act of 1934, as amended,
       and Section 1.89 of the Commission's Rules, Tucson Electric must
       submit a written statement concerning this matter within 20 days of
       release of this Notice. The response must contain a statement of the
       specific action taken to correct the violation.  Please include a
       photograph of the posted registration number. The response must be
       complete in itself and signed by a principal or officer of Tucson
       Electric. All replies and documentation sent in response to this
       Notice should be marked with the File No. and NOV No. specified above,
       and mailed to the following address:

   Federal Communications Commission

   San Diego District Office

   4542 Ruffner Street, Suite 370

   San Diego, CA 92111

    4. This Notice shall be sent to Tucson Electric Power Company, at its
       address of record.

    5. The Privacy Act of 1974 requires that we advise you that the
       Commission will use all relevant material information before it,
       including any information disclosed in your reply, to determine what,
       if any, enforcement action is required to ensure compliance. Any false
       statement made knowingly and willfully in reply to this Notice is
       punishable by fine or imprisonment under Title 18 of the U.S. Code.

   FEDERAL COMMUNICATIONS COMMISSION

   William R. Zears, Jr.

   District Director

   San Diego District Office

   Western Region

   Enforcement Bureau

   47 C.F.R. S: 1.89.

   47 U.S.C. S: 403.

   P.L. 93-579, 5 U.S.C. S: 552a(e)(3).

   18 U.S.C. S: 1001 et seq.

   Federal Communications Commission

   2

                       Federal Communications Commission