You need DA Form 4660-1, and this page gets you to the file and through it. Start with what the form is: MILITARY AUXILIARY RADIO SYSTEM AUTHORIZATION TO OPERATE (WALLET CERTIFICATE), used to MILITARY AUXILIARY RADIO SYSTEM AUTHORIZATION TO OPERATE (WALLET CERTIFICATE). Check next that you have the right version — the edition dated 04/01/2026 is the one published here, and its status is ACTIVE. Then look at the size before you begin, because unknown page(s) and roughly unknown fields tell you how long this will take.
Now decide who does the writing. Normally you enter your own particulars, then hand the sheet to the unit administrative office for review. If you work in that office, you enter what the individual brings you. From there the path is the same for everyone: CIO is responsible for the form, and AR 25-6 tells you what triggers it and where it ends up. Look at the directive first whenever your case departs from the ordinary.
Work from the top down, one block at a time. First the name — copy it from your official records rather than writing it the way you usually do. Then the identification number, then the unit, then today's date. Fill these before anything else. When the form reaches a file cabinet or a database, these are the entries someone searches on, so get them right before you worry about the rest.
In the body of the form, tab from field to field instead of clicking around. The tab order follows how the form was constructed, which keeps you from missing a box. For check boxes and option buttons, click them. If you find a set where the choices are exclusive, expect your new selection to clear the previous one. Keep an eye on long entries as you type: fields built for one line will not wrap, and what overflows the width will print truncated even though your screen shows all of it. At that point move the text into remarks or onto a continuation. And when something does not apply to you, say so in the field — write the entry that means "none" rather than leaving white space a reviewer has to interpret.
Leave the signature until everything else is done. Sign by hand or by an approved electronic means, and remember that a form without a signature is a draft, however complete the entries. Where a second and third signature are required — reviewing official, approving authority, witness — go in the order the blocks appear, and each signer dates the form on the day of signing. Then go back to the top and read what you wrote. Look first for a mandatory field you passed over, then for transposed digits in your identification number, then for a date with the day and month inverted. If you started from a file you had used before, look also for entries left from that earlier use; nothing removes them but you.
At some point while filling the form you will meet a Privacy Act statement, and you should read it when you reach it rather than after you finish. It tells you who is authorised to collect the information, what it will be used for, who else may see it, and whether you are obliged to answer or may decline. Once you have entered your details, treat the file accordingly: it now holds personal information about you, so store it and send it the way your office handles such records.
Download the form
Next comes the download itself. The formats available are none published here, and you decide between them by asking how you will enter the information. If you plan to type, take the fillable pdf: the boxes accept keyboard input and you can save the result. If you plan to write by hand, take the printable pdf and run it through your printer while it is still blank. Both show the same published page, so the decision affects your method and nothing else.
After you download, open the file the right way. Double-click a pdf and your browser may take it, which is fine for reading but risky for filling: some browser viewers show you the fields, let you type, and then lose the text when you close the tab. Save the file to your computer first, then open it in a full pdf reader, and check that your entries survive a save before you type the whole form.
One last point before you move on: every format is free. No registration stands between you and the file, and what you download is the published form, unaltered.
Now send it on. Follow the routing in the prescribing directive, which will point you to a named office, to your unit administrative channel, or to your own file. Take a copy before you release it. From there the record follows the retention schedule for the series, and neither you nor the receiving clerk shortens or extends that on local judgement.
If you find you need a second form to go with this one, look by series and number. Forms in the DA series that share a proponent or a prescribing directive are often used together, and any form named on the face of this one normally goes forward with it. Gather continuation sheets, cover sheets and transmittal documents before you submit, not after somebody asks for them.
The next time you open this form from your own files, check the edition date first. Revisions come from the proponent without warning to you, so the only reliable step is to hold your copy against the current edition before filling it in again. Records you already completed under a superseded edition stand, and you do not go back to rework them.
One last thing to be clear about before you download. What you get here is a copy of a published Department of the Army document. This site is not part of the Department of the Army, issues no forms of its own, and cannot tell you that any office will accept what you submit. Nothing written on this page is legal advice. When you are unsure about a particular entry, a requirement or whether you are eligible at all, ask CIO or the administrative office that services your unit — they answer those questions and we do not.
Questions and answers
- What is DA Form 4660-1?
- MILITARY AUXILIARY RADIO SYSTEM AUTHORIZATION TO OPERATE (WALLET CERTIFICATE)
- Which edition is current?
- 04/01/2026
- Who is responsible for this form?
- CIO
- In which formats can it be downloaded?
- No file published here