Understanding Your DD-214: Every Block Explained

Your DD Form 214, officially titled "Certificate of Release or Discharge from Active Duty," is the single most important document you receive from the military. It is your proof of service and the key to unlocking VA benefits, education assistance, home loans, veteran hiring preferences, and more. Despite how critical it is, most service members receive their DD-214 on their last day with little to no explanation of what each block means. This guide breaks down every key section so you know exactly what you are looking at — and what to do if something is wrong.

Block 12a — Date Entered Active Duty

This block records the date you entered your most recent period of continuous active duty. For many veterans, this is the date they shipped to basic training or officer candidate school. If you had a break in service and reenlisted, this reflects the start of your most recent active-duty period, not your original entry date.

Why it matters: Combined with Block 12b, this determines your total time in service for this period, which affects GI Bill eligibility (you need at least 90 days of aggregate active duty for Post-9/11 GI Bill benefits, with more service time unlocking higher benefit percentages), VA loan eligibility, and retirement calculations.

Block 12b — Date of Separation

This is your official separation date — the last day you were on active duty. This is the date that starts the clock on several important timelines: your 180-day window for transitional Tricare, your eligibility window for certain VA programs, and the date employers and government agencies use to verify your service.

Why it matters: Many benefits have time-sensitive enrollment windows that start from this date. For example, you have 90 days after separation to convert your SGLI life insurance to VGLI without a health screening. Some VA mental health services are available for five years from this date. Know these deadlines.

Block 18 — Remarks

Block 18 is a free-text field where the military records additional information about your service. This is where you will find details like your education level at entry and separation, special training completed, awards and decorations that did not fit elsewhere, language proficiencies, and your last duty assignment. This block often contains information about overseas service, combat deployments, and any special programs you participated in.

Why it matters: The remarks section can make or break your VA claims. If your deployment to a combat zone or exposure to environmental hazards (burn pits, Agent Orange, contaminated water) is documented here, it supports presumptive conditions claims. It also lists any education credentials, which can be helpful when applying for jobs or further education. Review this block carefully and make sure deployments and significant service events are documented before you sign.

Block 24 — Character of Service

This is arguably the most consequential block on your entire DD-214. Block 24 records your character of service (also called discharge characterization) and falls into one of five categories:

• Honorable: Full access to all VA benefits, GI Bill, VA home loan, disability compensation, and veteran hiring preferences.
• General (Under Honorable Conditions): Eligible for most VA benefits including healthcare and disability compensation, but not eligible for the GI Bill.
• Other Than Honorable (OTH): Limited or no VA benefits. Eligibility must be determined on a case-by-case basis through a VA Character of Discharge determination. Mental health care related to military service may still be available.
• Bad Conduct Discharge (BCD): Result of a court-martial. Generally bars VA benefits unless the VA determines the discharge was under conditions other than dishonorable.
• Dishonorable: Result of a General Court-Martial. Bars all VA benefits.

Why it matters: Your character of service determines access to virtually every benefit you earned. If you received a less-than-honorable discharge and believe it was unjust — particularly if it was related to PTSD, TBI, military sexual trauma, or sexual orientation under "Don't Ask, Don't Tell" — you can apply for a discharge upgrade through your branch's Discharge Review Board (DRB) or Board for Correction of Military/Naval Records (BCMR/BCNR).

Block 25 — Separation Authority

This block cites the regulation or authority under which you were separated. For Army veterans, this is typically an AR 635-200 reference; for Marines, it is an MCO; for Air Force, an AFI. The specific paragraph cited tells the story of why you were separated. For example, AR 635-200, Chapter 4 is an expiration of term of service (normal ETS), while Chapter 5-17 might indicate a medical separation.

Why it matters: While most employers will not know how to read this code, the VA certainly does. The separation authority works together with Block 26 and Block 28 to paint a complete picture of why you left service. If you are applying for a discharge upgrade, this block is critical evidence. Our DD-214 Decoder tool can help you look up what your specific separation authority means.

Block 26 — RE Code (Reentry Code)

The Reentry (RE) Code indicates your eligibility to reenlist or enter another branch of the armed forces. RE codes range from RE-1 (fully eligible to reenlist with no restrictions) to RE-4 (not eligible for reenlistment). RE-2 and RE-3 codes are conditional — they may allow reenlistment with a waiver or after meeting certain conditions.

Why it matters: If you are considering going back into the military, joining the Reserves or Guard, or commissioning as an officer, your RE code determines whether that door is open. An RE-4 code is almost always a hard no. Even if you do not plan to go back in, this code is part of your permanent military record and may come up in certain government employment screenings.

Block 27 — SPN/SPD Code (Separation Program Designator)

The Separation Program Designator (SPD) code, formerly known as the Spin or SPN code, is a three-character alphanumeric code that provides the specific reason for your separation. These codes are standardized across the DoD. For example, "JBK" typically means completion of required active service, while "KFS" might indicate a medical condition. There are hundreds of SPD codes, and many are not intuitive.

Why it matters: This code can affect your ability to reenlist and may be reviewed during security clearance investigations or certain government job applications. While civilian employers generally cannot ask about your SPD code, it is part of your permanent record. Use our DD-214 Decoder to look up exactly what your SPD code means.

Block 28 — Narrative Reason for Separation

Block 28 provides a plain-English explanation of why you were separated. Common entries include "Completion of Required Active Service," "Expiration Term of Service," "Disability, Severance Pay," "Voluntary Separation — Sufficient Service for Retirement," or "Parenthood or Custody of Minor Children." Less favorable entries might read "Misconduct" or "Pattern of Misconduct."

Why it matters: Unlike the coded blocks above, Block 28 is human-readable, and it is the block most likely to be reviewed by employers, educational institutions, and government agencies. Certain narrative reasons can support or hinder your VA claims. For example, "Disability" as a narrative reason strengthens a VA disability claim because the military itself acknowledged your condition at separation. If your narrative reason is inaccurate or unfair, this is another reason to pursue a correction through the BCMR.