Welcome to the US Commercial Service Sacramento. One of over 100 offices around the US offering the trade expertise to assist with exporting.At the Sacramento Boyd Law office we have experienced and successful contract attorneys offering free legal consultations. The purpose of the CISG is to provide a modern, uniform and fair regime for contracts for the international sale of goods. You must obtain a seller's permit if you: • Are engaged in business in California, and. Before supplying any goods or services to the County of Sacramento, the vendor must obtain a Purchase Order (PO), or Contract Shipping Order (CSO). Call Tom Powell today at (858) 255-4210 or fill out our form to embark on a successful business sales journey. Contact Synergy Business Brokers in California.