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DA Form 3126-1 belongs to the DA series of Department of the Army publications. Its official title is APPLICATION AND CONTRACT FOR ESTABLISHMENT OF A NATIONAL DEFENSE CADET CORPS UNIT, and its stated purpose is application and agreement for establishment of a national defense cadet corps unit (s&i milpercen). Edition in force: 04/01/2023. Publication status: ACTIVE. Length is 3 page(s), with roughly 200 fields available for entry.
Proponency for the form rests with G-1. The governing authority is AR 145-2, which establishes the circumstances of use and the required routing. Preparation falls to the individual named in the entries or to the unit administrator acting on that individual's behalf; review and signature follow the chain set out in the governing authority. A later edition of this form exists. The edition shown here is superseded and is retained for reference and for records already executed on it.
Formats offered: PDF. All are the same published layout in different containers, and the choice between them is a matter of how the entries will be made rather than what appears on the page. The pdf serves as the authoritative rendering. A fillable pdf exposes editable fields on screen; a printable pdf is the blank form as a flat page for handwriting.
A pdf opens in any current browser or in a dedicated reader. Fillable behaviour is more reliable in a full reader than in a browser viewer, where some field types render but do not save.
Download of every format is free and requires no account. Files are served as published, without alteration to the page image.
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
Entry proceeds block by block in the order printed on the page. Identifying particulars occupy the head of the form: name, identification number, unit or organisation, and date of preparation. These fields govern how the record is later retrieved from the file, so they are completed before any substantive block.
Typed entry is made straight into the interactive fields. The tab key moves through them in the order set at build time, generally matching the reading order of the page. Boxes and buttons respond to a click; in an exclusive group, one selection cancels the others. Single-line fields do not wrap, and anything longer than the field width prints cut off although it may still display in full on screen. Extended text goes to remarks or a continuation sheet rather than into a narrow box.
Signature comes at the end, applied in ink or by an accepted electronic method. Until it is applied the document is a draft. Additional signatures — reviewer, approver, witness — are taken in printed block order, each dated when signed rather than when the form was drafted. The commonest error is a mandatory field left blank; where nothing applies, the entry is marked accordingly instead of being skipped. Transposed identification digits, day and month reversed in dates, and carried-over data from a reused working copy account for most of the remainder.
A Privacy Act statement appears on the form where personal information is collected. It sets out the authority for collection, the purpose, the routine uses, and whether disclosure is mandatory or voluntary. The statement is read before entry, not after. Completed copies carry personal data and are handled and stored under the safeguards applicable to that data.
Once completed, the form goes where the governing authority directs: to the designated office, along the unit administrative channel, or into the personal file. The preparer retains a copy. The length of retention and the manner of filing are set by the records schedule for the series, not by local arrangement.
Associated documents are located through the series and number scheme. Forms in the DA series with the same proponent or the same prescribing directive tend to be used as a set, and any form named on the face of another normally accompanies it. Continuations, cover sheets, and transmittals fall into this category and are gathered before the package is sent.
An edition stands until the proponent issues a revision. The printed edition date identifies the version, and a copy held locally is checked against the edition now in force before reuse. Prior executions under a superseded edition are not reopened for that reason.
What is offered here are copies of published Department of the Army documents, made available for download. The site is independent of the Department of the Army and publishes no forms of its own. The material is informational and not legal advice, and no statement is made about whether any office will accept a given document. Questions of entry, requirement, or eligibility go to the proponent or the servicing administrative office.
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