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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 QetUPIKtfqGXuwmEKMsYl+7xYfbPhQsR6nHetYvMhVzyLGqlGL4UWHXLQ8bdbZbP
 hjBhoZONfw1sa8p2AXCxvA==

<SEC-DOCUMENT>0000881791-03-000049.txt : 20030804
<SEC-HEADER>0000881791-03-000049.hdr.sgml : 20030804
<ACCEPTANCE-DATETIME>20030804183736
ACCESSION NUMBER:		0000881791-03-000049
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030801
FILED AS OF DATE:		20030804

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			OWEN ROBERT S
		CENTRAL INDEX KEY:			0001210737

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19791
		FILM NUMBER:		03821823

	BUSINESS ADDRESS:	
		STREET 1:		8550 W BRYN MAWR
		STREET 2:		SUITE 700
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60631
		BUSINESS PHONE:		7738241000

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
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>c0001210737d20030804f4s1f.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-08-01</periodOfReport><notSubjectToSection16>1</notSubjectToSection16><issuer><issuerCik>0000881791</issuerCik><issuerName>USF CORP</issuerName>        <issuerTradingSymbol>USFC</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001210737</rptOwnerCik><rptOwnerName>OWEN ROBERT S</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>8550 W. BRYN MAWR</rptOwnerStreet1><rptOwnerStreet2>SUITE 700</rptOwnerStreet2><rptOwnerCity>CHICAGO</rptOwnerCity><rptOwnerState>IL</rptOwnerState><rptOwnerZipCode>60631</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>Vice President, Controller</officerTitle><otherText></otherText></reportingOwnerRelationship></reportingOwner><nonDe
rivativeTable><nonDerivativeTransaction><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-08-01</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>13200</value></transactionShares><transactionPricePerShare><value>24.938</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>13764</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></nonDerivativeTransaction><nonDerivativeTrans
action><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-08-01</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>D</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>13200</value></transactionShares><transactionPricePerShare><value>31.499</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>564</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></nonDerivativeTransaction><nonDerivativeHolding><securityTitle><value>Common Sto
ck</value></securityTitle><postTransactionAmounts><sharesOwnedFollowingTransaction><value>165</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>Spouse IRA</value></natureOfOwnership></ownershipNature></nonDerivativeHolding></nonDerivativeTable><derivativeTable><derivativeHolding><securityTitle><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>8000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>8000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directO
rIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeHolding><derivativeTransaction><securityTitle><value>Stock Options (Right to buy)</value></securityTitle><conversionOrExercisePrice><value>24.938</value></conversionOrExercisePrice><transactionDate><value>2003-08-01</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>13200</value></transactionShares><transactionPricePerShare><value>24.938</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2001-10-30</value></exerciseDate><expirationDate><value>2008-10-30</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Sto
ck</value></underlyingSecurityTitle><underlyingSecurityShares><value>13200</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>11800</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value></value></natureOfOwnership></ownershipNature></derivativeTransaction><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></sharesOwnedFollowingTransac
tion></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>42.875</value></conversionOrExercisePrice><exerciseDate><value>2000-12-10</value></exerciseDate><expirationDate><value>2009-12-10</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityValue><value>10000</value></underlyingSecurityValue></underlyingSecurity><postTransactionAmounts><valueOwnedFollowingTransaction><value>10000</value></valueOwnedFollowingTransaction></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>2003-08-04</signatureDate></ownerSignature></ownershipDocument>

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</SEC-DOCUMENT>
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