Maine

• ​Title 30-A Municipalities & Counties
  
• Part 2- Municipalities
  
• Subpart 2-Organizations & interlocal Corp.
  

​Maryland

• State Finance and Procurement
  
• Division 2- Procurement
  
• Title 13- Source Selection for Procurement
  
• Subtitle 1-Methods for Selecting Sources
  

Massachusetts

• Administration of the Government
  
• Title VIII-Cities, Towns & Districts
• Chapter 40-Powers & Duties of Cities & Towns
  

Michigan

• Michigan Compiled Laws
  
• Chapter 124- Municipalities

Minnesota

• Minnesota Statutes
  
• Chapter 471-Municipal Rights, Powers, Duties

Mississippi

• Mississippi Code 1972
  
• Title 31-Public Business, Bonds & Obligations
  
• Chapter 7- Public Purchases
  

Missouri

• Title IV-County, Township & Political Subdivision Government
• Chapter 70- Powers of Political Subdivisions to Cooperate or Contract

Montana

• Title 18- Public Contracts
  
• Chapter 4- Montana Procurement Act
  
• Part 4- Cooperative Purchasing
  

Nebraska

• Chapter 13- Cities,Counties, & Political Sub.

Nevada

• Title 27- Public Property & Purchasing
  
• Chapter 232- Purchasing: Local Government General Provisions
  

New Hampshire

• Title III- Towns, Cities, Village Districts & Unincorporated Places
  
• Chapter 53-A Agreements Between Gvt Units
  

New Jersey

• Title 52- State Government, Depts & Officers
  
• Chapter 52:34-6.2 Cooperative Purchasing Agreements with other states
  

New Mexico

• Subtitle 11- intergovernmental Agreements
  
• Article 1- Joint Powers Authority
  

New York

• ​General Municipal Law
  
• ​Article 5A-Public Contracts
  
• ​Section 103
  

North Carolina

• Chapter 160A Cities & Towns
• Article 20- Interlocal Cooperation
• Part 1- Joint Exercise of Powers
  

North Dakota

• Title 54- State Government
  
• Chapter 54-40- Joint Exercise of Govt Powers
  

Ohio

• Ohio Revised Code
  
• General Provisions
  
• Chapter 9-Miscellaneous​

Oklahoma

• Title 74- State Government
  
• Chapter 31 Interlocal Cooperation Act

State Authorizations For Cooperative Purchasing

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Alabama

• ​Title 11- Counties & Municipal Corporations
  
• Subtitle 3- Provisions Applicable to Counties & Municipal Corporations
  
• Chapter 102- Common Service Contracts by Counties & Municipalities
  

​Alaska

• Title 36- Public Contracts
  
• Chapter 36.30 State Procurement Code
  
• Article 9- intergovernmental Relations
  

Arkansas

• 19-11-206 Definitions concerning intergovernmental relations
  
• 19-11-249 Cooperative Purchasing

California

• Califirnia Government Code
  
• Title 1 General
  
• Division 7 Miscellaneous
  
• Chapter 5 joint Exercise of Powers
  
• Article 1 joint Powers Agreement

Colorado

• Colorado Revised Statutes
  
• Title 24 Government-State
  
• Article 110- Intergovernmental Relations
  

Connecticut

• Title 7- Municipalities
  
• Chapter 98- Municipal Powers
  

Delaware

• Title 29- State Government
  
• Part IV- Budget, Fiscal, Procurement and Contracting Regulations
  
• Chapter 69- State Procurement
  
• Subchapter III- Material & Nonprofessional Services
  

Florida

• Title XI- County Organization & Intergovernmental Relations
  
• Chapter 163- Intergovernmental Programs
  
• Part I- Miscellaneous Programs
  

Georgia

• Constitution of the State of Georgia
  
• Article IX- Counties & Municipal Corporations
  
• Section III- Intergovernmental Relations
  

Idaho

• Title 67- State Government & State Affairs
  
• Chapter 23- Miscellaneous Provisions
  

Illinois

• Chapter 5- General Provisions
  
• Act 220- Intergovernmental Cooperative Act
  

Indiana

• Title 36- Local Government
  
• Article 7- Interlocal Cooperation
  

Iowa

• Title I- State Sovereignty & Management
  
• Subtitle 10- Joint Governmental Activity
  
• Chapter 28E- joint Exercise of Governmental Powers
  

Kansas

• Chapter 12- Cities & Municipalities
• Article 29- Interlocal Cooperation

Kentucky

• Title VI- Financial Administration
  
• Chapter 45A- KY model Procurement Code
  

Lousiana

• Title 39 Public Finance
  
• Subtitle III- General Laws on State Debt
  
• Chapter 17-Louisiana Procurement Code
  
• ​Part VII- Intergovernmental Relations
  

​

Oregon

• Chapter 279A- Public Contracting
• General Provisions
  

Pennsylvania

• ​Title 62-Procurement
  
• Part 1- Commonwealth Procurement Code
  
• Chapter 19-Intergovernmental Relations.
  

Rhode Island

• Rhode Island General Laws
  
• Title 45- Towns & Cities
  
• Chapter 40.1- interlocal Contracting

South Carolina

• Title 11- Public Finance
  
• Chapter 35- SC Consolidated Proc. Code
• Article 19- Intergovernmental Relations
  

Tennessee

• Title 12- Public Property, Printing & Contracts
  
• Chapter 9- Interlocal Cooperation

Texas

• Title 7- Intergovernmental Relations
  
• Chapter 791- Interlocal Cooperation Contracts
• Subchapter C- Specific Interlocal Authority
  

Utah

• Title 11--Cities, Counties & Local Taxing Units
  
• Chapter 13- Interlocal Cooperation Act
  

Vermont

• Title 24-Municipal & County Government
• Part 2- Municipalities
• Chapter 121- intermunicipal Cooperation & Services
  
• Subchapter 4- Interlocal Contracts
  

Virginia

• Title 2.2 Administration of Government
  
• Subtitle II- Administration of State Government
  
• Part B- Transaction of Public business
  
• Chapter 43- Virginia Public Procurement Act
  
• Article 2- Contract Formation & Administration
  

Washington

• Title 39 RCW-Public Contracts & Indebtedness
• Chapter 39.34 RCW- Interlocal Coop Act
  

West Virginia

• Chapter 8- Municipal Corporations 
  
• Article 23- Intergovernmental Relations
  
• Contracting & Joint Enterprises
  
• Part II-Intergovernmental Agreements
  

Wisconsin

• Chapter 66-General Municipality Law
  
• Subchapter III- Intergovernmental Cooperation
  

Wyoming

• Title 16- City, County, State & Local Powers
  
• Chapter 1- Intergovernmental Cooperation
  
• Article 1- In General
  

District of Columbia

• District of Columbia Code
• Division I- Government fo District
  
• Title 2- Government Administration
  
• Chapetr 3- Procurement
  
• Unit A- procurement Practices for the District Government
  
• ​Subchapter XI- Miscellaneous
  

​