Mandatory for Foreign Military Sales (FMS) Letters of Offer and Acceptance (LOAs), (except Foreign Military Sales Order (FMSO) I.
Mandatory for Amendments and Modifications if the Purchaser changes from one type of closure to the other.
For cases belonging to Purchasers under the Accelerated Case Closure (ACC) procedures:
"The estimated closure date is 24 months after the date of projected final delivery or service performance, or 36 months for training cases."
For cases belonging to Purchasers not participating in ACC procedures:
"The estimated closure date is 36 months after projected final delivery or service performance or the closure of underlying associated contracts, whichever occurs later."