<SEC-DOCUMENT>0001206774-17-001018-index.html : 20170330
<SEC-HEADER>0001206774-17-001018.hdr.sgml : 20170330
<ACCEPTANCE-DATETIME>20170330160856
ACCESSION NUMBER:		0001206774-17-001018
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20170330
DATE AS OF CHANGE:		20170330
EFFECTIVENESS DATE:		20170330

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			USG CORP
		CENTRAL INDEX KEY:			0000757011
		STANDARD INDUSTRIAL CLASSIFICATION:	CONCRETE GYPSUM  PLASTER PRODUCTS [3270]
		IRS NUMBER:				363329400
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08864
		FILM NUMBER:		17725744

	BUSINESS ADDRESS:	
		STREET 1:		550 WEST ADAMS STREET
		STREET 2:		DEPARTMENT 188
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60661
		BUSINESS PHONE:		312-606-4000

	MAIL ADDRESS:	
		STREET 1:		DEPARTMENT #188
		STREET 2:		550 WEST ADAMS STREET
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60661
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>usg3132481-defa14a.htm
<DESCRIPTION>DEFINITIVE ADDITIONAL PROXY SOLICITING MATERIALS
<TEXT>
Document 1 - file: usg3132481-defa14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>usg3132481-defa14ax2x1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: usg3132481-defa14ax2x1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>usg3132481-defa14ax3x1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: usg3132481-defa14ax3x1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>usg3132481-defa14ax4x1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: usg3132481-defa14ax4x1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>usg3132481-defa14ax5x1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: usg3132481-defa14ax5x1.jpg

</DOCUMENT>
</SEC-DOCUMENT>