So what is DD Form 1921? The short answer: a Defense Department document, officially Cost Data Summary Report, used to Cost Data Summary Report. Anything else you need follows from that.
Is there a version specific to your service? No. A DD number is issued at Department level, which is the whole point of the prefix — every military department and defense agency works from one identical document. Looking for a branch variant wastes time you do not have.
Who decides this form exists? not stated owns it; not stated directs its use. If someone told you to file this, the authority traces back to those.
Which edition should you have? not stated, listed as not stated. A copy dated otherwise is a copy worth replacing.
Download the form
What can you download? The available set is none published here. How big is the job? The form runs unknown pages with roughly unknown fields to complete.
What is the difference between fillable and printable? A fillable pdf has real field boxes that accept typed text and hold it inside the file. A printable pdf is a flat blank with no fields at all, intended for a printer and a pen. Which one you have determines how you complete the form, so it is worth checking first.
Is handwriting acceptable? Yes, but it is the weaker choice. Scanning flattens pen strokes and reproduction blurs them, while typed characters survive the whole chain intact. Print in capitals if you are working from a paper blank.
What opens an xfdl file? IBM Lotus Forms Viewer, or a compatible client. Will your pdf reader do it? No, and it will likely report the file as damaged. Xfdl was the Defense standard for electronic forms for years, which is why it still appears in the set.
Is there a charge? No — free, all formats. Where should you open the file? In a full pdf application on your own machine. Browser-embedded viewers handle field properties unpredictably.
In what order do you complete it? The printed order, top to bottom. Header data comes before the body, and the body before the signature block. The sequence is not decorative — later entries are keyed to earlier ones.
What is the first thing to check? The edition date on the face of the form. Does it read not stated? If not, the copy is superseded, and a superseded DD form is a real problem: Department-level revisions replace the blank for every service at once, so an old file on a shared drive is stale everywhere, not just in your office.
Where do you look up an unclear entry? The form face first, not stated second. And when the two disagree? not stated controls.
Where does the completed form go? To the office named in not stated or in your organization's local procedure. Should you keep a copy? Always — a scan or a saved file costs nothing and spares you the whole exercise if the original disappears.
How do you find a form referenced inside this one? By its number alone. The DD sequence runs across the entire Department, so a number identifies exactly one document regardless of which service cited it.
Can you assume a matching number is the same form? No, and this is where downloads go wrong. Read the prefix. Army numbering and Department numbering are independent systems, so the digits alone tell you nothing about which document you need.
Why do editions change at all? Three reasons, mostly: the prescribing directive gets reissued, the information collected changes, or the required notice language is amended. Are you notified when it happens? No. Which is why confirming not stated at the moment you download is worth the few seconds.
Is any of this advice? No. This page distributes a published Defense form and explains its contents, which is a different thing from telling you whether your circumstances qualify or whether a reviewer will accept your copy. Direct questions of eligibility, applicability and procedure to not stated, to your servicing personnel office, or to the office designated in not stated.
Questions and answers
- What is DD Form 1921?
- Cost Data Summary Report
- Which edition is current?
- Not stated by the publisher
- Who is responsible for this form?
- Not stated
- In which formats can it be downloaded?
- No file published here