-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 IvwmRw2NoFQk/51bQheibWgRrnwqLdxsCqi2/yzsycOerK/qO+IHRvSkAmIW5yZD
 e6LNnZ7oIfC+9dcItAigbQ==

<SEC-DOCUMENT>0000881791-04-000003.txt : 20040114
<SEC-HEADER>0000881791-04-000003.hdr.sgml : 20040114
<ACCEPTANCE-DATETIME>20040114184947
ACCESSION NUMBER:		0000881791-04-000003
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040112
FILED AS OF DATE:		20040114

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			USF CORP
		CENTRAL INDEX KEY:			0000881791
		STANDARD INDUSTRIAL CLASSIFICATION:	TRUCKING (NO LOCAL) [4213]
		IRS NUMBER:				363790696
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		8550 W BRYN MAWR AVE
		STREET 2:		SUITE 700
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60631
		BUSINESS PHONE:		773.824-1000

	MAIL ADDRESS:	
		STREET 1:		8550 W. BRYN MAWR AVE
		STREET 2:		SUITE 700
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60631

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	USFREIGHTWAYS CORP
		DATE OF NAME CHANGE:	19970410

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TNT FREIGHTWAYS CORP
		DATE OF NAME CHANGE:	19930328

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DELANEY ROBERT V
		CENTRAL INDEX KEY:			0001198412

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19791
		FILM NUMBER:		04525923

	BUSINESS ADDRESS:	
		STREET 1:		8550 W BRYN MAWR STE 700
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60631
		BUSINESS PHONE:		7738241000

	MAIL ADDRESS:	
		STREET 1:		8550 W BRYN MAWR STE 700
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60631
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>c0001198412d20040114f4f.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2004-01-12</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000881791</issuerCik><issuerName>USF CORP</issuerName>        <issuerTradingSymbol>USFC</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001198412</rptOwnerCik><rptOwnerName>DELANEY ROBERT V</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>922 IRONGATE WALK</rptOwnerStreet1><rptOwnerStreet2></rptOwnerStreet2><rptOwnerCity>BALLWIN</rptOwnerCity><rptOwnerState>MO</rptOwnerState><rptOwnerZipCode>63011</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle></officerTitle><otherText></otherText></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTran
saction><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2004-01-12</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>273</value></transactionShares><transactionPricePerShare><value>0</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>273</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></nonDerivativeTransaction></nonDerivativeTable><derivativeTable><derivativeHolding><se
curityTitle><value>Stock Options (Right to buy)</value></securityTitle><conversionOrExercisePrice><value>24.063</value></conversionOrExercisePrice><exerciseDate><value>2001-12-14</value></exerciseDate><expirationDate><value>2010-12-14</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>6000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>6000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Stock Options (Right to buy)</value></securityTitle><conversionOrExercisePrice><value>24.938</value></conversionOrExercisePrice><exerciseDate><value>1999-10-29</value></exerciseDate><expirationDate><value>2008-10-29</
value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>2000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>2000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Stock Options (Right to buy)</value></securityTitle><conversionOrExercisePrice><value>28.921</value></conversionOrExercisePrice><exerciseDate><value>2002-12-13</value></exerciseDate><expirationDate><value>2012-12-13</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>5000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmount
s><sharesOwnedFollowingTransaction><value>5000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Stock Options (Right to buy)</value></securityTitle><conversionOrExercisePrice><value>31.875</value></conversionOrExercisePrice><exerciseDate><value>2001-02-21</value></exerciseDate><expirationDate><value>2010-02-21</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>10000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>10000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value
></natureOfOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Stock Options (Right to buy)</value></securityTitle><conversionOrExercisePrice><value>33.42</value></conversionOrExercisePrice><exerciseDate><value>2004-12-12</value></exerciseDate><expirationDate><value>2013-12-12</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>5000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>5000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeHolding><derivativeHolding><securityTitle><value>Stock Options (Right to buy)</value></securityTitle><conversionOrExercisePrice><value>35</value></conversionOrExercisePrice><exerciseDate
><value>2003-02-14</value></exerciseDate><expirationDate><value>2012-02-14</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>5000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>5000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeHolding></derivativeTable><footnotes></footnotes><ownerSignature><signatureName>Richard C. Pagano/Dora Travaglio</signatureName><signatureDate>2004-01-14</signatureDate></ownerSignature></ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----