1. Policy.

a. UCAs should be used on an infrequent basis for clearly defined, urgent requirements and must be definitized within the established 180 day definitization schedule.

b. Contracting officers must only obligate funds consistent with the contractor's spend plan for the undefinitized period and also stay within the maximum obligation amount allowed in DFARS 217.7404-4. Obligating funds in excess of the contractor's spend plan encourages extended periods of performance prior to definitization.