DD Form 1660 occupies a particular place in Defense recordkeeping. Its title is Management Systems Summary List, and it exists to Management Systems Summary List. What the DD prefix records is an administrative judgment made long before your copy was printed: this transaction was determined to be common to the whole Department rather than peculiar to one service, and so the documentation of it was standardized at Department level.
That decision has consequences you will notice. Because not stated prescribes the form for the Department as a whole, and not stated maintains it on the Department's behalf, the same blank passes between the Army, the Navy, the Air Force, the Marine Corps, the Space Force, the Coast Guard when operating under Defense jurisdiction, the defense agencies and the combatant commands without translation. A clerk in one component reads a record created in another and finds the fields where they expect them.
You are looking for edition not stated, listed as not stated. Department-wide supersession is a single event rather than a rollout, which is what distinguishes edition currency on a DD form from the same question on a service publication: nobody anywhere is still accepting the previous version out of habit.
The sequence printed on the form is the sequence in which a reviewer will read it, and the two should agree. Header data frames every entry below it; the substantive fields depend on that frame; the certification stands at the end because its whole function is to vouch for what came before. Entries made out of sequence commonly contradict entries made earlier.
Verify the printed edition against not stated first. Field structure shifts between editions, and the office that receives your record is reading the current one. That office may sit outside your service, which removes even the informal accommodation you might expect from a colleague who used the old version last month.
Every field takes an entry, N/A included. The reason is evidentiary rather than clerical: a completed record is supposed to show what was asked and what was answered, and blank space records neither. On dates, follow the format printed beside the field. Conventions vary between components, and a joint document is read by people who do not share your habits.
Understand what the Privacy Act Statement is doing on the page. It exists because collecting personal data from an individual triggers a duty to explain the collection: under what authority, for what purpose, to whom the information may routinely go, and whether you are obliged to answer. That explanation precedes the fields for the obvious reason — afterwards it is merely a notice, beforehand it is a basis for deciding.
What the signature block asks for is an act, not a text. Ink on a printed copy performs that act; a digital signature bound to your credential performs it electronically, CAC-based in most Defense systems. Typing your name performs nothing, since anyone with the file could type the same characters. Enter the date at the same moment: the certification is a statement about a point in time and needs one recorded.
Recurring defects have a pattern to them, and it is mostly the pattern of a record that cannot be relied on: an edition that does not match, gaps that cannot be interpreted, entries that cannot be read after scanning, dates that could mean two things, and a certification nobody executed. For an ambiguous field, read the form's own instruction, then not stated, which controls.
Download the form
Formats available: none published here, across unknown pages and about unknown fields. That several formats coexist is a consequence of scale — the Department cannot standardize the software on every desk that needs this form, so it standardizes the document instead.
Two states of the same page circulate, and the reason is worth knowing. In the fillable pdf, the boxes are real fields holding real data; in the printable pdf, the boxes are drawings. Where a record will cross components — as Department records regularly do — the typed version is the safer artifact. Each scan, each forwarding, each reproduction costs handwriting a little legibility, and the office that finally files the record is rarely the office that received it first.
The completed form goes to the office named in not stated or in local implementing procedure, and it is worth keeping a copy before it goes. On a Department form the destination is frequently outside your own chain — another service, a defense agency, a joint staff — and recovering a document that has crossed an organizational boundary is a slower business than retrieving one from a file down the hall.
Forms referenced inside this one are located by number alone, and that simplicity is a direct product of Department-level numbering. Because the DD sequence is maintained centrally and not duplicated by service, a number is a complete address: one number, one document, throughout the Defense establishment.
It helps to see the DA and DD sequences as what they are: separate registries with separate custodians. One serves a single service under a service proponent, the other serves the Department under not stated or an equivalent office, and neither was ever indexed against the other. A number that appears in both systems points to two unrelated documents, which is why reading the prefix comes before reading the digits.
A form is downstream of the policy that requires it, and revision usually starts there: a directive is reissued, a collection requirement is altered, notice language is updated by statute. The form is republished as a consequence. Since none of that reaches individual users, an archived copy quietly becomes wrong, and verifying not stated each time you download is the whole remedy.
A word on what this page is. It distributes a published Department of Defense document and describes what the document contains and how it is completed. It is not the issuing authority, does not speak for one, and offers no legal advice; nothing written here determines whether a particular submission will be accepted, because that determination belongs entirely to the office receiving it. Questions of applicability, eligibility or procedure go to not stated, to your servicing personnel office, or to the office identified in not stated.
Questions and answers
- What is DD Form 1660?
- Management Systems Summary List
- 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