I am working to get a contract awarded for contractor logistics supprt. Included in the contract is the unit level and depot level support, which is funded by O&M. The contract will be awarded as a CPFF for X dollars. The question rests in the whether or not we can negotiate FFP modifications, when they become necessary or known through the changes clause processing them through an ECP type process. The reason I say ECP type process, is because an ECP is associated with pre-fielding or production. MWO is the process used once fielded. The scope includes language and depot maintenance provides for modifications, but they are not know at the time of award. The awarded contract is for a baseline of services with language to allow for modifications. The contracting office believes whatever modifications/upgrades become necessary during the performance period would be considered new work requiring a J&A, etc. Conceptually increasing the contract cost without limit.
This is obviously something that is dealt with on a daily in many weapons system PM offices, but I am simply not familiar with the process.
Any thoughts would be appreciated.