Master Agreements (MA) are utilized when the County desires a list of pre-qualified vendors to perform various services, on an as-needed basis. Source Diverse Source Local is a public-private collaboration to strengthen an inclusive procurement and resilient California-based supply chain.In the performance of this Agreement, the Contractor shall make maximum use of products. Term supply agreement (LTA) is a type of contract that sets out the terms for supplying goods or services over a period of time.