Securities Exchange Act of 1934
Date of Report (Date of Earliest Event Reported): February 28, 2007
ERP OPERATING LIMITED PARTNERSHIP
(Exact Name of Registrant as Specified in its Charter)
Illinois
0-24920
36-3894853
(State or other jurisdiction
(Commission File Number)
(I.R.S. Employer
of incorporation or organization)
Identification Number)
EQUITY RESIDENTIAL
(Exact name of registrant as specified in its charter)
Maryland
1-12252
13-3675988
(State or other jurisdiction of incorporation)
(IRS Employer Identification Number)
Two North Riverside Plaza
60606
Suite 400, Chicago, Illinois
(Zip Code)
(Address of principal executive
offices)
Registrants telephone number, including area code (312) 474-1300