Exhibit 3.22

Delaware	PAGE 1
The First State

I, JEFFREY W. BULLOCK, SECRETARY OF STATE OF THE STATE OF DELAWARE, DO HEREBY CERTIFY THE ATTACHED ARE TRUE AND CORRECT COPIES OF ALL DOCUMENTS ON FILE OF “BLUEFIELD HOLDINGS, LLC” AS RECEIVED AND FILED IN THIS OFFICE.

THE FOLLOWING DOCUMENTS HAVE BEEN CERTIFIED:

CERTIFICATE OF FORMATION, FILED THE SIXTEENTH DAY OF APRIL, A.D. 2010, AT 7:03 O’CLOCK P.M.

AND I DO HEREBY FURTHER CERTIFY THAT THE AFORESAID CERTIFICATES ARE THE ONLY CERTIFICATES ON RECORD OF THE AFORESAID LIMITED LIABILITY COMPANY, “BLUEFIELD HOLDINGS, LLC”.

			/s/    Jeffrey W. Bullock
			Jeffrey W. Bullock, Secretary of State
4812809    8100H		AUTHENTICATION:    9118950
111140363		DATE:     10-27-11

You may verify this certificate online

at corp.delaware.gov/authver.shtml

State of Delaware

Secretary of State

Division of Corporations

Delivered 07:58 PM 04/16/2010

FILED 07:03 PM 04/16/2010

SRV 100394756 – 4812809 FILE

STATE of DELAWARE

LIMITED LIABILITY COMPANY

CERTIFICATE of FORMATION

•     First: The name of the limited liability company is Bluefield Holdings, LLC.

• Second: The address of its registered office in the State of Delaware is 2711 Centerville Road, Suite 400 in the City of Wilmington (New Castle County). The name of its Registered agent at such address is Corporation Service Company.

• Third: (Use this paragraph only if the company is to have a specific effective date of dissolution.) “The latest date on which the limited liability company is to dissolve is                                          .”

• Fourth: (Insert any other matters the members determine to include herein.)

In Witness Whereof, the undersigned have executed this Certificate of Formation of Bluefield Holdings, LLC this 16 day of April, 2010.

BY:	/s/    Robin J. Keck
	Authorized Person(s)
NAME:	Robin J. Keck, Organizer
	Type or Print