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

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the Securities
Exchange Act of 1934 (Amendment No.     )

Filed by the Registrant   þ

Filed by a Party other than the Registrant   o

Check the appropriate box:

o   Preliminary Proxy Statement

o   Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

o   Definitive Proxy Statement

þ   Definitive Additional Materials

o   Soliciting Material Pursuant to §240.14a-12

CNF INC.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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April 5, 2006

Dear Fellow Shareholder:

      CNF’s 2006 Annual Meeting of Shareholders will be held on April 18, and if you have not yet returned your proxy card we urge you to do so now. A duplicate proxy card and postage-paid return envelope are enclosed for your convenience.

      We recently became aware that, due to a printer’s error, the five-year performance graph appearing under the caption “Comparison of Five-Year Cumulative Total Shareholder Return” on page 31 of CNF’s 2006 proxy statement inadvertently contained the information which appeared in last year’s proxy statement. A corrected copy of the five-year performance graph appears on the reverse side of this letter.

      We apologize for any inconvenience.

Sincerely,

Douglas W. Stotlar

President and Chief Executive Officer

COMPARISON OF FIVE-YEAR CUMULATIVE TOTAL SHAREHOLDER RETURN*

CNF Inc., S&P Midcap 400 Index, Dow Jones Transportation Average

	Cumulative Total Return
	4Q00		4Q01		4Q02		4Q03		4Q04		4Q05
CNF	$	100.0	$	100.6	$	100.9	$	104.2	$	155.5	$	174.8
S&P Midcap 400	$	100.0	$	99.4	$	85.0	$	115.2	$	134.1	$	150.8
Dow Jones Transportation Average	$	100.0	$	90.8	$	80.4	$	105.9	$	135.2	$	150.8

*  Assumes $100 invested on December 31, 2000 in CNF Inc. (then known as CNF Transportation Inc.), S&P Midcap 400 Index, and the Dow Jones Transportation Average and that any dividends were reinvested.