Mandatory for FMS LOAs that include any TDPs for study purposes. Each LOA will state "TDP for study (no production authorized)" underneath the MASL description:

Mandatory for Amendments and Modifications on cases involving TDPs for study purposes.

See Section C3.5.4.

IA

"The technical data package offered herein is provided for study purposes only. In making this FMS offer to [insert purchaser], the U.S. Government makes no prior commitment or authorization for [insert purchaser] to manufacture the defense equipment described herein. Separate U.S. Government approval is required for such manufacture. If requested and approved, a new LOA or LOA Amendment will be issued for the provision of a certified production technical data package and any applicable charges for its use for manufacture."