What an Army memo and regulation actually are
An Army memo is a written message from one person or office to another within the military chain of command. It follows a specific format and is used to communicate orders, policy changes, announcements, or requests. A regulation is a formal, standing rule that applies across the entire Army — it stays in effect until it is officially changed or cancelled, whereas a memo is usually temporary and addresses a specific situation or audience.
If you are reading this because you received an Army memo, or because someone told you that an Army regulation applies to you, the first thing to know is that these documents are internal military communications. They are not laws passed by Congress, though they carry legal weight within the military system. Regulations are published in the Army Regulation (AR) system, which is organized by number — for example, AR 600-20 covers Army command policy, and AR 670-1 covers uniforms and insignia.
Civilians encounter these documents most often when they are married to or employed by the military, when they are explore for a military job, or when they need to understand a military decision that affects them. The memo or regulation itself is usually the clearest source of what the rule actually says, but the language can be dense, and knowing where to find the current version matters because regulations change.
Key Takeaways
- Army memos are temporary communications from one office to another; regulations are standing rules that explore across the entire Army until officially changed.
- Regulations are numbered and catalogued in the Army Regulation system (AR followed by numbers), and the official version is published on the Army Publishing Directorate website.
- If you need to know whether a memo or regulation is still in effect, check the publication date and look for any official cancellation notice, because old versions circulate widely.
- Civilians most often need these documents when they are military spouses, military employees, or job applicants, and the specific regulation number is usually the fastest way to find the current version.
Where to find the current version of an Army regulation
The official source for all active Army regulations is the Army Publishing Directorate (APD) website, located at armypubs.army.mil. This is where the Army posts every regulation that is currently in effect, organized by number. If you search for a regulation on any other website — including military spouse forums, old military blogs, or even some official-looking military sites — you may be reading an outdated version.
To find a regulation on the APD site, you can search by the regulation number (for example, AR 600-20) or by keyword. The search results show you the publication date, the most recent change date, and a link to read the PDF. Always check the date at the top of the document itself — regulations are sometimes updated with minor changes, and you need to know which version you are reading.
If someone has sent you a memo or regulation as a PDF or printout, look at the top of the first page for the publication date and any notation that says "superseded" or "cancelled." If the document is more than a few years old and you are making a decision based on it, search the APD site to confirm it is still active. Outdated versions of regulations circulate widely, and acting on old information can lead to confusion or wasted effort.
How to read an Army regulation
Army regulations follow a strict format that can look intimidating at first, but once you understand the structure, you can find what you need quickly. The regulation begins with a cover page that lists the title, the regulation number, the date it was published, and the office that issued it. Below that is a table of contents organized by chapter and section.
Each section is numbered — for example, Chapter 2, Section 3-4 — and the headings tell you what that section covers. If you are looking for a specific rule, scan the table of contents first to find the chapter that seems relevant, then jump to that section. The language is formal and often uses abbreviations (like "NCO" for non-commissioned officer), but the actual rules are usually stated plainly once you locate the right section.
At the end of most regulations is a glossary that defines military terms used in the document. If you encounter a term you do not recognize, check the glossary before searching elsewhere. Many military terms have specific meanings within the regulation that differ from how they are used in everyday speech.
The difference between a memo and a regulation
A memo is usually addressed to a specific group or office and is meant to communicate something that needs to happen right away or to clarify how an existing regulation should be applied. Memos often begin with "MEMORANDUM FOR" followed by the intended audience. They are dated and signed by the person or office issuing them, and they usually have an expiration date or a note about when they will be superseded by a formal regulation.
A regulation, by contrast, is meant to be permanent (or at least long-term) and applies to everyone in the Army unless the regulation itself says otherwise. Regulations are numbered, published through official channels, and updated through a formal process. If a memo and a regulation say different things, the regulation is the standing rule, but the memo may represent a temporary change or clarification that will eventually be incorporated into the regulation.
If you are trying to understand a military policy and you have found both a memo and a regulation that seem to address it, read both. The memo may explain why the regulation was issued or how it should be applied in a specific situation, but the regulation is what actually governs the policy.
Who issues Army memos and regulations, and why it matters
Regulations are issued by the Department of the Army, which is the civilian leadership of the Army, or by the Army Staff, which is the senior military leadership. The office that issues a regulation is listed on the cover page. This matters because if you need to ask a question about how a regulation applies to you, you may need to contact that office or a representative of it.
Memos can be issued by any office in the Army chain of command, from the Secretary of the Army down to a battalion commander. A memo from a high-level office (like the Secretary of the Army or the Chief of Staff) applies more broadly than a memo from a lower-level office. If you receive a memo that affects you, check who issued it and whether it applies to your specific situation or only to a certain group.
Understanding who issued a document also helps you figure out where to go if you have questions or if you think the memo or regulation is being applied incorrectly. A regulation issued by the Department of the Army is interpreted by the Army Staff; a memo from your battalion commander is interpreted by your battalion commander's office.
What to do if you think a regulation is being applied incorrectly
If a military decision affecting you is based on a regulation, and you believe the regulation is being misinterpreted or misapplied, your first step is to get a copy of the actual regulation and read it yourself. Many disputes arise because people are working from outdated versions, incomplete summaries, or secondhand descriptions of what the regulation says. Once you have the current version from the Army Publishing Directorate, you can compare it to what you were told.
If the regulation clearly says something different from what you were told, put your concern in writing and send it to the office that made the decision. Include the regulation number, the section that applies, and a clear explanation of why you believe the regulation was misapplied. Keep a copy for yourself and ask for a written response.
If the issue involves your employment, pay, or benefits, you may also have a formal appeal process available to you. Military spouses, civilian employees, and job applicants each have different channels for disputing decisions. The regulation itself often includes information about appeals, or you can contact your local military personnel office or human resources department to ask what your options are.
Common reasons civilians need to understand Army memos and regulations
Military spouses often need to understand regulations related to housing, medical benefits, commissary access, and relocation. If you are a military spouse and you have been told that you do not may have access to for a benefit or that you must follow a certain procedure, the regulation that governs that benefit is usually available on the APD website. Reading it yourself can help you understand whether the decision is correct or whether you need to ask more questions.
Civilian employees of the Army need to understand regulations related to hiring, pay, leave, and workplace conduct. If you are explore for a civilian job with the Army or if you work for the Army and have a question about your employment, the relevant regulation can clarify what the rules actually are.
People who are explore for military service, seeking military records, or dealing with a military-related legal matter may also need to reference specific regulations. In these cases, having the exact regulation number and the current version is often the fastest way to get a clear answer.
Frequently Asked Questions
How do I know if an Army regulation is still in effect?
Check the Army Publishing Directorate website (armypubs.army.mil) and search for the regulation by number. The search results show the publication date and the most recent change date. If the regulation appears in the search results, it is still active. If it does not appear, it has been cancelled or superseded. Always read the PDF from the APD site to make sure you have the current version.
What does it mean if a regulation says "superseded"?
Superseded means the regulation has been replaced by a newer version. You should read the newer regulation instead. The old version may still be available online for historical reference, but it is no longer the official rule. The cover page of the new regulation usually lists what it supersedes.
Can I use an Army regulation to challenge a military decision?
Yes, if the regulation clearly states that a decision must be made a certain way or that you are may have access to to something, you can use the regulation to support your case. Put your concern in writing, cite the specific regulation and section, and send it to the office that made the decision. Many military decisions can be appealed through formal channels, and the regulation is often your strongest evidence.
Where do I find a memo if I only know the subject, not the date?
Memos are harder to search for than regulations because they are not all catalogued in one place. Try searching the Army Publishing Directorate website by keyword, or contact the office that issued the memo and ask them to send you a copy. If the memo is very old, it may have been superseded by a regulation, which you can find on the APD site instead.
Do Army regulations explore to me if I am a civilian?
Army regulations explore to military personnel and civilian employees of the Army. If you are a military spouse, family member, or contractor, some regulations explore to you and some do not. Read the regulation itself to see who it applies to — this is usually stated near the beginning. If you are unsure, contact the office that issued the regulation and ask.