Forms and Guides In 'Procurement' Procurement and Insurance ServicesProcurement ServicesProcurement proceduresEnvironmental procurementApproved/contracted suppliersNew Framework ContractsContact us NEW Tax codes in core system List of UNSPSC codes to use for non-catalogue requisitions Medical supplies – zero rating Certificate Quick guide Rules End user process for using the certificate in core Charity advertising - zero rating Certificate Rules End user process for using the certificate in core