8-K

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 8-K
                                 CURRENT REPORT
                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934

                Date of Report (Date of earliest event reported):
                               September 18, 2006

                            NAVIGANT CONSULTING, INC.
        -----------------------------------------------------------------
               (Exact Name of Registrant as Specified in Charter)

      Delaware                        0-28830                 36-4094854
 ------------------                --------------       ------------------------
  (State or Other                   (Commission             (IRS Employer
Jurisdiction of Incorporation)      File Number)          Identification Number)

                       615 North Wabash, Chicago, IL 60611
               (Address of Principal Executive Offices) (Zip Code)

                                 (312) 573-5600
              (Registrant's telephone number, including area code)

                                      N.A.
          (Former Name or Former Address if Changed Since Last Report)



Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions:

   |_|      Written communications pursuant to Rule 425 under the Securities Act

   |_|      Soliciting material pursuant to Rule 14a-12 under the Exchange Act

   |_|      Pre-commencement communications pursuant to Rule 14d-2(b) under the
            Exchange Act

   |_|      Pre-commencement communications pursuant to Rule 13e-4(c) under the
            Exchange Act







ITEM 8.01.  Other Events.

On September 18, 2006, Navigant Consulting,  Inc. (the "Company") issued a press
release  reporting  its  receipt of a ruling from an  arbitrator.  A copy of the
press  release  is filed as an exhibit to this  report  and is  incorporated  by
reference into this Item.

ITEM 9.01.  Financial Statements and Exhibits.

(d) The following items are included as Exhibits to this report:

99.1     Press Release dated September 18, 2006



                                       2




SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                    NAVIGANT CONSULTING, INC.

Date:  September 18, 2006           By: /s/ Ben W. Perks
                                        ----------------------------------------
                                    Ben W. Perks
                                    Executive Vice President and Chief Financial
                                    Officer

EX-99.1

                                                                    Exhibit 99.1

Navigant Consulting Receives Ruling From Arbitrator

    CHICAGO--(BUSINESS WIRE)--Sept. 18, 2006--Navigant Consulting, Inc.
(NYSE:NCI) announced today that it has received a ruling in an arbitration
proceeding relating to a previously-disclosed dispute with the City of Vernon,
California. The dispute relates to certain electric distribution maintenance
services that RMI-US, a subsidiary of the Company, provided to the City prior to
November 30, 2003. Since then, the Company no longer provides electric
distribution maintenance services.
    As previously disclosed, in February 2006 the Company received an adverse
order and "interim finding" in which an arbitrator found that the City was
entitled to disgorgement of unspecified amounts under the contract, and was
entitled to unspecified treble damages. On September 15, 2006, the arbitrator
issued an "Interim Award" in which he ruled that the City is entitled to
reimbursement of approximately $13.4 million in services fees that the City paid
the Company. The arbitrator also ruled that the Company must pay approximately
$23.0 million in treble damages under the California False Claims Act. Finally,
the arbitrator ruled that the City was entitled to reimbursement of
approximately $935,000 for cleanup expenses incurred in connection with an oil
spill in 2001 at the City's generation station, and the City may recover its
reasonable attorneys' fees and arbitration costs.
    The Company strongly disagrees with the arbitrator's ruling and damages
award. As previously disclosed, the Company has the right under the arbitration
association's rules to appeal this ruling to a three judge panel. The Company
intends to appeal both the arbitrator's findings and award. Under the rules
governing the appeals process, the arbitrator's award will not be considered
final and cannot be enforced until affirmed, reversed or modified as result of
the appeals process.
    The Company will host a webcast to discuss the arbitration ruling today at
10:00 a.m. Eastern Time (9:00 a.m. Central Time). The webcast may be accessed on
the Company's website, www.navigantconsulting.com. To access the call, click the
Investor Relations section and select "Conference Calls."

    About Navigant Consulting

    Navigant Consulting, Inc. (NYSE:NCI) is a specialized independent consulting
firm providing dispute, financial, regulatory and operational advisory services
to government agencies, legal counsel and large companies facing the challenges
of uncertainty, risk, distress and significant change. The Company focuses on
industries undergoing substantial regulatory or structural change including
healthcare, energy and financial and insurance services, and on the issues
driving these transformations. "Navigant" is a service mark of Navigant
International, Inc. Navigant Consulting, Inc. (NCI) is not affiliated,
associated, or in any way connected with Navigant International, Inc. and NCI's
use of "Navigant" is made under license from Navigant International, Inc. More
information about Navigant Consulting can be found at
www.navigantconsulting.com.

    Except as set forth below, statements included in the press release, which
are not historical in nature, are intended to be, and are hereby identified as
"forward-looking statements" as defined within the Private Securities Litigation
Reform Act of 1995. Forward-looking statements may be identified by words
including "anticipates," "believes," "intends," "estimates," expects" and
similar expressions. The Company cautions readers that forward-looking
statements, including without limitation, those relating to the Company's future
business prospects, revenues, working capital, liquidity, income and margins,
are subject to certain risks and uncertainties that could cause actual results
to differ materially from those indicated in the forward-looking statements, due
to several important factors, including those identified from time to time in
the Company's reports filed with the SEC. Such risk factors include, but are not
limited to: dependence on key personnel, acquisitions consummated and
acquisitions under consideration, recruiting, attrition and the ability to
successfully integrate new consultants into the Company's practices, significant
client assignments, conflicts of interest, the ability to meet the challenges of
rapid growth and intense competition, professional liability, any significant
decline in the market value of the Company's securities that would affect its
ability to attract, retain and motivate its consultants, possible legislative
and regulatory changes, including without limitation federal class action,
asbestos and medical malpractice reform legislation, and general economic
conditions.

    CONTACT: Navigant Consulting, Inc.
             Ben W. Perks, 312-573-5630
             (Executive Vice President and Chief Financial Officer)
             Andrew J. Bosman, 312-573-5631
             (Executive Director of Marketing and Communications)