Public purchasing.

Provides that the purchasing agency of a governmental body must use a purchasing procedure when purchasing services. Provides that a purchasing agent may only make a purchase without soliciting bids or proposals if the purchase qualifies for a special purchase. Requires a contract between a state elected official's office and a contractor to include language disclosing if, in the 12 months preceding the execution of the contract, the contractor or an officer or director of the contractor made a contribution to the state elected official's campaign. Requires a state elected official's office to execute an addendum to a contract if the contractor or an officer or director of the contractor makes a contribution to the state elected official's campaign after the contract is executed and before the end of the contract's term.