In order for your MIPR to be processed, a Technical Area Task (TAT) number must be listed on the MIPR in section B of the DD Form 448 in the description. Your TAT number will be the two letter designator for the IAC, the fiscal year that your effort was submitted, the RMS number associated with your effort, and the delivery order number for your effort.
For example, if your ordering from the RIAC contract, your statement of work was submitted in FY11, and your RMS number is 45 then your TAT number would be RI-11-0045/DO#__.
The DO number will remain blank for new TATs until the TAT is awarded/ put on contract. Incremental funding MIPRs must include the DO#__.
Your IAC POC will provide the TAT number during the TAT coordination process.