LGC Chapter 252: Purchasing and Contracting Authority of Municipalities LGC Chapter 271: Purchasing and Contracting Authority of Municipalities, Counties, and Certain Other Local Governments GC Chapter 791: Interlocal Cooperation Contracts GC Chapter 2161: Historically Underutilized Businesses GC Chapter 2253: Public Work Performance and Payment Bonds GC Chapter 2254: Professional and Consulting Services GC Chapter 2269: Contracting and Delivery Procedures for Construction Projects