See Section C9.4.5.
Mandatory for Foreign Military Sales (FMS) Letters of Offer and Acceptance (LOAs) when a Nonrecurring Cost (NC) charge applies but the Term of Sale is "Military Assistance Program (MAP) Merger."
Mandatory for Amendments and Modifications when the Term of Sale remains "MAP Merger and lines are added and the NC charge applies to the new lines; or quantities are increased on lines where an NC charge applies.
"Nonrecurring Costs (NC) apply to line(s) [insert numbers] of this Foreign Military Sales (FMS) case. These charges are not included on this case because the Term of Sale is "MAP Merger." If the Terms of Sale on this case are changed to include other terms, NC charges will be added to this case unless a waiver is requested and approved."