Williams logo Williams logo Williams Search Primary Menu VENDOR TERMS & CONDITIONS Home > Vendor Terms & Conditions THE WILLIAMS COMPANIES, INC., TERMS & CONDITIONS The following Williams’ standard terms and conditions shall apply to all Purchase Orders, unless we have entered into a separate written agreement. Please retain a copy for your files, unless otherwise notified to the contrary. These terms and conditions do not take precedence over any existing Williams contract. All Purchase Orders will be transmitted to you via fax, e-mail, or U.S. mail. The terms and conditions will be provided along with the purchase order. Williams requires a routing code (code used to direct the internal flow of an invoice received from our suppliers) on all invoices when submitted for payment. Failure to obtain and include the routing code on all invoices will result in the non-payment and return of the invoice to the supplier. VIEW TERMS AND CONDITIONS OF PURCHASE ORDER SUPPLIER PORTAL TAX PERMITS CONTRACTOR SAFETY RESPONSIBILITIES CODE OF BUSINESS CONDUCT FOR SUPPLIERS AND CONTRACTORS