We have been awarded a CPFF contract from DOD. We are evaluating the SOW and how to enter into subcontracts. It's clear some activiites of the SOW can be FFP. Others due to the uncertainties lend themselves to T & M. Are Are D & F required? If so, do we provide to the CO? or are D & F 16.601 (d) limitations good practice? Same applicability question for DFARS 216.601 (d). New user - gained a lot of knowledge reading dicussion thread - thanks