The Availability of AppropriationsLimitations on Appropriated FundsThe Purpose LimitationThe Time LimitationThe Amount LimitationThe Bona Fide Needs RuleThe Applicability of the Bona Fide Needs Rule to Annual AppropriationsThe Applicability of the Bona Fide Needs Rule to Multiyear AppropriationsContinuing Needs under Multiyear AppropriationsThe Applicability of the Bona Fide Needs Rule to No-Year AppropriationsThe Applicability of the Bona Fide Needs Rule to Supply ContractsThe Applicability of the Bona Fide Needs Rule to Service ContractsSeverable Service ContractsNonseverable Service Contracts