What is DA Form 3126-1? It is the Department of the Army form titled APPLICATION AND CONTRACT FOR ESTABLISHMENT OF A NATIONAL DEFENSE CADET CORPS UNIT, and it exists so that you can application and agreement for establishment of a national defense cadet corps unit (s&i milpercen). That single line covers most of what people arrive looking for. The rest of this page fills in the details.
Is this the current version? The edition offered here is dated 04/01/2023, published with the status ACTIVE. That date is the version number of a military form; there is no other. And no, this is not the newest one. A later edition has been published, and this copy is kept only for reference and for records already completed on it.
Who is responsible for this document? G-1 maintains it, and AR 145-2 prescribes when it is used and where it goes. Completion falls to the person the entries describe or to the administrative staff holding the file. As for effort: 3 page(s), roughly 200 fields.
What the form asks for
- ACADEMIC
- ADDRESS
- ARMY
- AVAILB_A
- AVAILB_B
- AVAILB_C
- BUILD_A
- BUILD_A_1
- BUILD_A_2
- BUILD_A_3
- COURSES
- ContentArea1
- ContentArea2
- DATE_A
- DATE_B
- DENOMIN
- ELECTIVE
- ENROLLMENT
- EQUIPMENT
- ESTABLISH
- EXCLUS_A
- EXCLUS_A_1
- EXCLUS_A_2
- EXCLUS_A_3
Download the form
What can I download here? The formats available are PDF. Each one reproduces the identical official layout. What separates them is the method of entry, nothing on the page itself.
Fillable or printable — which do I want? Fillable, if there is a keyboard involved: the boxes are interactive objects that store text. Printable, if there is a pen involved: the boxes are just lines on paper. Nothing else distinguishes them.
Do I need special software? Not for reading — a pdf opens in the browser you already have. For filling, install a full pdf reader rather than trusting the in-browser viewer, which sometimes displays fields it cannot save. Type into one field, save, reopen and confirm the text survived.
Does the download cost anything? No. There is no charge, no account and no email address to surrender, and the file you receive is the published document with nothing added to it.
Which entries come before the rest? The identifying ones at the head of the page: name, identification number, unit, date of preparation. Does it matter that they come first? Yes — everything downstream retrieves the record by those values, so they are worth getting right before you touch the substantive blocks.
How should you work through the entry fields? With the tab key. It follows the order the form was constructed in, which is usually the order the page reads, so nothing gets passed over. Do check boxes work the same way? They are clicked rather than tabbed into. In an exclusive group, a second click elsewhere clears your first choice, as intended.
Why does my text vanish when I print? Because one-line fields have no wrap, and anything past the field width is truncated on paper even though the screen shows all of it. Where should the overflow go? Into remarks, or onto a continuation. What about entries that do not apply? Enter the mark meaning "none". Blank space is ambiguous; a reviewer cannot tell an omission from a considered nil.
When do you sign? Last, after every other entry is settled. Until the signature is applied the document is a draft, however complete it looks. What if more than one signature is required? Reviewing official, approving authority and witness sign in the order the blocks print, and each dates the form on the day of signing rather than the day it was prepared. What goes wrong most often? Mandatory fields left empty, transposed digits in identification numbers, dates with day and month reversed, and old entries surviving in a working copy that was reused instead of a fresh blank form.
What does the Privacy Act notice tell you? The legal authority behind the collection, what the information is for, the routine uses it may be put to, and whether disclosure is compulsory. When is the right moment to read it? Before completing the personal entries, at the point the statement appears. What follows from it? Your finished copy contains personal data, so store and send it the way your office handles that category.
Where do you send it? To the destination the prescribing directive names, which may be a specific office, the unit administrative channel, or the individual's file. Is a copy worth keeping? Always, and taken before submission. How long does the receiving office keep it? For the period the records schedule for the series prescribes, regardless of local custom.
Which other forms travel with this one? Those found by series and number: DA series documents sharing a proponent or a governing directive are frequently needed in combination, and a form referenced on the face of another generally accompanies it. Do you assemble them before or after sending? Before. Continuation sheets, cover sheets and transmittals are part of the same package.
Why do editions change? Because the proponent revises the content, and the edition date printed on the page marks the result. How do you tell whether a stored copy is still current? Compare its printed date against the edition in force before you use it again. Does a new edition invalidate what you already filed? No. Records executed under a superseded edition stand as they are.
What exactly is this site? A place to download reproductions of published Department of the Army documents. Is it part of the Department of the Army? No — it is independent, issues no forms of its own, and has no authority over any of them. Can it tell you whether your completed form will be accepted? It cannot, and nothing written here is legal advice. Who answers the real questions? G-1 or the administrative office servicing your unit, on any question of entry, requirement or eligibility.
Questions and answers
- What is DA Form 3126-1?
- APPLICATION AND CONTRACT FOR ESTABLISHMENT OF A NATIONAL DEFENSE CADET CORPS UNIT
- Which edition is current?
- 04/01/2023
- Who is responsible for this form?
- G-1
- In which formats can it be downloaded?
- PDF, PDF