A complete manual of instructions for use of the. ERP system and a pre-requisition checklist can be obtained on the District Office Purchasing Department.Completes Acquisition of Contra Costa Medical Career College. Published. The Purchasing Department will enter the receipt number and date on form 4cd-238 and file it in a "Material Surplus" file for year-end closing. Use this form to request a check from a Foundation Program Account. Please fill out and print form, and attach supporting documentation. Instructions for completing registration can be found in the link below.