<SEC-DOCUMENT>0000947871-19-000447-index.html : 20190614
<SEC-HEADER>0000947871-19-000447.hdr.sgml : 20190614
<ACCEPTANCE-DATETIME>20190614163535
ACCESSION NUMBER:		0000947871-19-000447
CONFORMED SUBMISSION TYPE:	S-3ASR
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20190614
DATE AS OF CHANGE:		20190614
EFFECTIVENESS DATE:		20190614

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			QUEST DIAGNOSTICS INC
		CENTRAL INDEX KEY:			0001022079
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-MEDICAL LABORATORIES [8071]
		IRS NUMBER:				161387862
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-3ASR
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-232138
		FILM NUMBER:		19899368

	BUSINESS ADDRESS:	
		STREET 1:		500 PLAZA DRIVE
		CITY:			SECAUCUS
		STATE:			NJ
		ZIP:			07094
		BUSINESS PHONE:		9735202700

	MAIL ADDRESS:	
		STREET 1:		500 PLAZA DRIVE
		CITY:			SECAUCUS
		STATE:			NJ
		ZIP:			07094

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CORNING CLINICAL LABORATORIES INC
		DATE OF NAME CHANGE:	19960903
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-3ASR
<SEQUENCE>1
<FILENAME>ss136749_s3asr.htm
<DESCRIPTION>REGISTRATION STATEMENT
<TEXT>
Document 1 - file: ss136749_s3asr.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>ss136749_ex0501.htm
<DESCRIPTION>OPINION OF SHEARMAN AND STERLING LLP
<TEXT>
Document 2 - file: ss136749_ex0501.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.2
<SEQUENCE>3
<FILENAME>ss136749_ex2302.htm
<DESCRIPTION>CONSENT OF PRICEWATERHOUSECOOPERS LLP
<TEXT>
Document 3 - file: ss136749_ex2302.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-25.1
<SEQUENCE>4
<FILENAME>ss136749_ex2501.htm
<DESCRIPTION>FORM T-1 STATEMENT OF ELIGIBILITY OF THE BANK OF NEW YORK MELLON
<TEXT>
Document 4 - file: ss136749_ex2501.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>image01.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: image01.jpg

</DOCUMENT>
</SEC-DOCUMENT>