<SEC-DOCUMENT>0000876661-13-000274.txt : 20130425
<SEC-HEADER>0000876661-13-000274.hdr.sgml : 20130425
<ACCEPTANCE-DATETIME>20130425112450
ACCESSION NUMBER:		0000876661-13-000274
CONFORMED SUBMISSION TYPE:	25-NSE
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20130425
DATE AS OF CHANGE:		20130425
EFFECTIVENESS DATE:		20130425

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CORPORATE OFFICE PROPERTIES TRUST
		CENTRAL INDEX KEY:			0000860546
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				232947217
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		25-NSE
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14023
		FILM NUMBER:		13781568

	BUSINESS ADDRESS:	
		STREET 1:		6711 COLUMBIA GATEWAY DRIVE
		STREET 2:		SUITE 300
		CITY:			COLUMBIA
		STATE:			MD
		ZIP:			21046
		BUSINESS PHONE:		4432855400

	MAIL ADDRESS:	
		STREET 1:		6711 COLUMBIA GATEWAY DRIVE
		STREET 2:		SUITE 300
		CITY:			COLUMBIA
		STATE:			MD
		ZIP:			21046

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CORPORATE OFFICE PROPERTIES TRUST INC
		DATE OF NAME CHANGE:	19980105

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ROYALE INVESTMENTS INC
		DATE OF NAME CHANGE:	19930328

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ROYALE REIT INC
		DATE OF NAME CHANGE:	19600201

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NEW YORK STOCK EXCHANGE LLC
		CENTRAL INDEX KEY:			0000876661
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			NY

	FILING VALUES:
		FORM TYPE:		25-NSE

	BUSINESS ADDRESS:	
		STREET 1:		11 WALL STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10005
		BUSINESS PHONE:		212-656-2060

	MAIL ADDRESS:	
		STREET 1:		11 WALL STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10005

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NEW YORK STOCK EXCHANGE INC
		DATE OF NAME CHANGE:	19910628
</SEC-HEADER>
<DOCUMENT>
<TYPE>25-NSE
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<notificationOfRemoval>

    <schemaVersion>X0203</schemaVersion>

    <exchange>
        <cik>0000876661</cik>
        <entityName>NEW YORK STOCK EXCHANGE LLC</entityName>
    </exchange>

    <issuer>
        <cik>860546</cik>
        <entityName>CORPORATE OFFICE PROPERTIES TRUST</entityName>
        <fileNumber>001-14023</fileNumber>
        <address>
            <street1>6711 Columbia Gateway Drive</street1>
            <street2>Suite 300</street2>
            <city>Columbia</city>
            <stateOrCountryCode>MD</stateOrCountryCode>
            <stateOrCountry>MARYLAND</stateOrCountry>
            <zipCode>21046</zipCode>
        </address>
        <telephoneNumber>(443) 285-5400</telephoneNumber>
    </issuer>

    <descriptionClassSecurity>7.625% Series J Cumulative Redeemable Preferred Shares of Beneficial Interest</descriptionClassSecurity>

    <ruleProvision>17 CFR 240.12d2-2(a)(1)</ruleProvision>

    <signatureData>
        <signatureName>Paras Madho</signatureName>
        <signatureTitle>Director</signatureTitle>
        <signatureDate>2013-04-25</signatureDate>
    </signatureData>
</notificationOfRemoval>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.25
<SEQUENCE>2
<FILENAME>ruleprovisionnotice.htm
<TEXT>
NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES

The New York Stock Exchange hereby notifies the SEC of its intention to remove the entire class of the stated securities from listing and registration on the Exchange at the opening of business on May 6, 2013, pursuant to the provisions of Rule 12d2-2 (a).

[  X  ] 17 CFR 240.12d2-2(a)(1)  That the entire class of this security was called for redemption, maturity or retirement on April 22, 2013; appropriate notice thereof was given; funds sufficient for the payment of all such securities were deposited with an agency authorized to make such payment; and such funds were made available to security holders on April 22, 2013.

The Exchange also notifies the Securities and Exchange Commission that as a result of the above indicated conditions this security was suspended from trading on April 22, 2013.
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
