Download the form
DA Form 3126 handles one job: application and contract for establishment of a junior reserve officers` training corps unit (s&i, hqda, attn: tapc-opp-p, 200 stovall st., alexandria, va 22332-0418). The official title is APPLICATION AND CONTRACT FOR ESTABLISHMENT OF A JUNIOR RESERVE OFFICERS` TRAINING CORPS UNIT. Download it below, fill it in, sign it, send it where your directive says. The edition on this page is 04/01/2023, status ACTIVE, running 4 page(s) with about 200 fields to complete. This edition is superseded — pull the newer one unless your record was already executed on this version.
Authority sits in two places. G-1 owns the form, AR 145-2 says when it is raised and where it goes. Routine cases need neither read in full — the page itself carries the sequence. The entries are completed by their subject or by unit administrative staff working from what that person supplies.
Pick by how you will enter data: PDF on offer. Typing means fillable pdf, where the boxes accept keystrokes and hold them on save. Handwriting means printable pdf, a flat page image sent straight to a printer. Neither version changes what appears on the page.
Use a full pdf reader, not the browser viewer. Browser viewers display fields they cannot always save, and the loss shows up only when you reopen the file — type one entry, save, reopen, verify, then fill the rest.
No charge, no account, no email address. The file is the published document, distributed unaltered.
What the form asks for
- AAOther
- AARegion
- AAState
- CRJOINT
- CRJOINT_1
- CRROOMS
- CRROOMS_1
- CRSTGCAP
- CRSTGCAP_1
- ContentArea1
- DAAVAIL
- EQPAVAIL
- FRNGPNTS
- GYMSIZE
- Group1
- Group2
- JURSDCTN
- LOCATION
- Line6
- NOOFCRMS
- NOOFCRMS_1
- NOOFCRMS_2
- NOOFCRMS_3
- NOOFCRMS_4
Start at the top and get the header exactly right. Official spelling of the name, identification number, unit, date. Everything downstream finds the record through those entries; nothing else on the page has that consequence.
Tabbing beats clicking for coverage. The order was set at build time and tracks the page layout, so following it leaves no gaps. Boxes and buttons are clicked; where options are exclusive, one selection cancels another by design. Watch field width on long entries: one-line fields have no wrap, and what runs past the edge disappears in print though the screen still shows it. Move that text to remarks or a continuation. Never leave an inapplicable field empty — enter the nil mark, because a reviewer cannot distinguish a skipped question from a considered answer.
Signature comes after every other entry — ink or an approved electronic means, and without it the document is a draft. Where reviewing, approving or witnessing signatures are called for, take them in printed block order, each dated on the day applied. Before release, one pass from the top. The defects worth hunting are always the same four: mandatory fields left empty, identification digits transposed, dates with day and month reversed, and stale data surviving in a copy reused in place of a blank form.
Privacy Act statement first, personal entries second. The notice covers who is authorised to collect, why, who else routinely sees it, and whether you must answer. After completion the file carries personal data and is stored and sent under the corresponding safeguards.
Routing follows AR 145-2 and nothing else — a named office, the unit administrative channel, or the individual's file, according to why the form was raised. Copy it before it leaves. Retention is fixed by the records schedule for the series, which local practice does not shorten or extend.
Look for associated forms by series and number. In the DA series, documents sharing a proponent or a governing directive tend to travel together, and anything referenced on the page normally submits alongside. Collect continuations, covers and transmittals in advance of sending.
A stored file goes stale silently. The proponent revises, a new edition date is published, and your copy says nothing about it — so compare the printed date against the edition in force before typing into it again. Completed submissions on an earlier edition are not reopened.
The files are copies of published Department of the Army forms. This site has no official connection, no authority to issue anything, and no basis for saying whether an office will accept a given submission. None of the text is legal advice. Real questions — entry, requirement, eligibility — belong with G-1 or the administrative office servicing your unit.
Questions and answers
- What is DA Form 3126?
- APPLICATION AND CONTRACT FOR ESTABLISHMENT OF A JUNIOR RESERVE OFFICERS` TRAINING 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