Accounts Payable is responsible to paying all the colleges bills for instructional materials, utilities, construction contracts, professional services, equipment and all of the other things that the college buys. The Accounts Payable staff pays bills through the Los Angeles County Office of Education. Departments throughout the college trigger payments to vendors by signing invoices, to certify that the goods or services were received and received in acceptable condition, and sending those signed invoices to the Accounts Payable Office. Of course, a purchase requisition and a purchase order are needed before a vendor will send goods or provide services to the college. See the purchasing webpage for information about the purchasing process.