How do I find a specific contract? Go to the Search menu and click on Contracts.THERE IS NO FEE FOR A SALES AND USE TAX PERMIT; however, you may be required to furnish a bond or security. Territory: West San Antonio and Border, including Laredo, McAllen and Brownsville For more information on how to complete your vendor registration with the City of. The purpose of the CISG is to provide a modern, uniform and fair regime for contracts for the international sale of goods. This section will help you navigate and understand the City's procurement processes, including how to pursue City contracts. Invitation for Bid (IFB). Used primarily for purchasing goods, as price is the main factor. A contract is an agreement between two parties that creates an obligation to perform (or not perform) a particular duty.