EXHIBIT 3.211

CERTIFICATE OF FORMATION

OF

ARIZONA DH, LLC

Pursuant to Section 18-201 of the Delaware Limited Liability Company Act (the “Act”), the undersigned authorized person, for the purpose of forming a limited liability company under the Act, hereby certifies the following:

FIRST: The name of the limited liability company is Arizona DH, LLC.

SECOND: The address of the registered office and the name and the address of the registered agent for service of process required to be maintained by Section 18-104 of the Act are

The Corporation Trust Company, Corporation Trust Center, 1209 Orange Street, Wilmington, New Castle County, Delaware 19801.

/s/ Jeffrey P. Kent
Jeffrey P. Kent, Authorized Person

120110.1
STATE OF DELAWARE
SECRETARY OF STATE
DIVISION OF CORPORATIONS
FILED 05:29 PM 07/06/2000
001343560 — 3249754

STATE OF DELAWARE
SECRETARY OF STATE
DIVISION OF CORPORATIONS
FILED 09:00 AM 04/04/2001
010169420 — 3249754

Certificate of Amendment to Certificate of Formation

of

ARIZONA DH, LLC

It is hereby certified that:

1. The name of the limited liability company (hereinafter called the “limited liability company”) is ARIZONA DH, LLC

2. The certificate of formation of the limited liability company is hereby amended by striking out the statement relating to the limited liability company’s registered agent and registered office and by substituting in lieu thereof the following new statement:

“The address of the registered office and the name and the address of the registered agent of the limited liability company required to be maintained by Section 18-104 of the Delaware Limited Liability Company Act are Corporation Service Company, 2711 Centerville Road, Suite 400, Wilmington, Delaware 19808.”

/s/ Michael L. Silhol
MICHAEL L. SILHOL, MANAGER