NCAS Uniform System Codes System Code Type - Any -Accounting RulesBuying EntitiesDocument IDsInventory Search Title Accounting Rules Categories - Capital Improvement Accounting Rules Categories - Clearing Suspense Accounting Rules Categories - Encumbrance Accounting Rules Categories - Grant Accounting Rules Accounting Rules Categories - Recording Budgetary Transactions Accounting Rules Categories - Recording Quarterly Allotments Accounting Rules Categories - Recording Quarterly Reversions Buying Entity Document IDs Inventory Elements Items Paying Entity Requisitions/RFQ/Purchase Order Numbers