Start here if you have been told to submit DD Form 2641. First, know what you are filling: Trafficability Test Data. The document is titled Trafficability Test Data.
Next, check the edition. You want not stated, currently carried as not stated by the publisher. Then confirm the form applies to you — this is a Department of Defense form, so you use it whether you serve in the Army, Navy, Air Force, Marine Corps, Space Force or Coast Guard under Defense jurisdiction.
Once you know the form fits, find out when you file it. not stated sets the requirement, and not stated maintains the form itself. Your own command or agency adds local timing on top of that, so ask your administrative office if the deadline matters to you.
Before you download, pick your approach — editable file or printed page. What follows covers the formats first, then the entries, then what you do afterward.
Now fill it in. Work from the top of the page downward, and do not jump ahead — the identifying block comes first, the substance of your entry second, the certification last. Later boxes often depend on what you put at the top.
Check the edition before you type a word. The date appears on the face of the form; it should read not stated. When it does not, discard the file and take a fresh copy from this page. Department-level revisions replace the blank across all services simultaneously, which means an old printout can be out of step everywhere.
Fill every box as you come to it. If an item does not apply, enter N/A — an empty field looks like an oversight, and the form comes back to you. Watch the date fields especially: use the format the form specifies, not your habitual one.
When you reach a Privacy Act Statement, read it before you continue. It tells you the legal authority for collecting your information, what the Department does with it, who else may see it, and whether you have to answer at all. That last point is worth knowing before you supply personal identifiers, not after.
Finish with the certification. Print the form and sign in ink, or apply a digital signature with your CAC if the receiving office accepts one. Do not type your name in the signature box and consider it done; that is a name, not a signature. Date the block immediately after signing.
Then check your work against the usual failures: an obsolete edition, empty required boxes, handwriting nobody can read after scanning, wrong date format, missing signature or date.
If a particular field puzzles you, read the instructions printed on the form first, then go to not stated. When the two disagree, follow the directive.
Download the form
First, look at what you can download. The set covers none published here, the form runs unknown pages, and you will complete roughly unknown fields.
Take the pdf if you are unsure. Then check which kind you have: if the boxes highlight when you click them, you have a fillable pdf and can type straight into it, and your entries save with the file. If nothing highlights, you have a printable pdf — send it to a printer and use black ink.
Prefer typing over writing. Your form will likely be scanned and emailed onward, and typed text reproduces at every stage while pen strokes fade or blur. When you do write, print in capitals so the receiving clerk can read it.
Now that it is complete, send it where not stated or your local procedure says it goes. Before you do, make yourself a copy — scan it or save the file elsewhere. It costs you nothing and saves you the whole exercise if the original goes missing.
When DD Form 2641 references another form, search on the series and number. Because DD numbers are common to every military department, the number by itself identifies exactly one document.
Be careful when a procedure pairs this form with a service form. Read the prefix, not just the digits. Service forms answer to a service proponent, while DD forms answer to not stated or an equivalent Department office, and the two sequences were never aligned. Grabbing the wrong prefix gets you a form that has nothing to do with your task.
Plan to repeat this step whenever the form comes up again. Revisions follow directive changes, changes in what data is collected, and updates to notice language. Since nobody notifies you, check not stated at download and you have covered it.
Before you go, note what is not covered here. You have the blank form and instructions for completing it; you do not have legal guidance, and no statement on this page determines what any office will do with your submission. Direct those questions to not stated, to the personnel office that serves you, or to the office designated in not stated.
Questions and answers
- What is DD Form 2641?
- Trafficability Test Data
- 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