Issued Date Format on Your ID: 4a Code and How to Read It

The issued date format on a U.S. ID depends on which ID you’re holding. State driver’s licenses and ID cards print it as MM/DD/YYYY, usually on the front, often labeled “ISS,” “Issued,” “Date of Issue,” or marked with the code “4a.” Federal documents use different conventions, so a passport and a driver’s license won’t display the same date the same way.

Where the Issued Date Appears on a Driver’s License

On most state driver’s licenses and ID cards, the issued date is printed on the front, near your date of birth and expiration date. Placement varies by state. It often sits in the lower portion of the card or next to your photo, and a few states print it on the back near the magnetic stripe or barcode.

Scan for small text labels: “ISS,” “Issued,” “Date of Issue,” or “DT ISSUED.” Those labels exist so the issued date isn’t confused with your birth date or expiration date, since all three are formatted identically.

How to Read the Date

U.S. driver’s licenses and state ID cards use month-day-year order: MM/DD/YYYY. A card issued on March 5, 2026 reads 03/05/2026. Some states use dashes (03-05-2026) instead of slashes, but the order is the same. The 2025 AAMVA DL/ID Card Design Standard specifies MM/DD/CCYY for all U.S. cards.1AAMVA. 2025 AAMVA DL/ID Card Design Standard

Confusion creeps in when both numbers are 12 or lower. A date like 03/04/2026 could be read as March 4 or April 3 depending on your assumption. In the U.S., always read month first. Some cards print a faint “MM/DD/YYYY” legend near the date fields. When you’re typing the issued date into an online form, confirm the form uses the same order your card uses.

What the “4a” Code Means

Many newer licenses show “4a” next to the issued date instead of a word label. The AAMVA DL/ID Card Design Standard assigns reference numbers to every data element on the card, and “4a” is the mandatory on-card reference for the date of issue.1AAMVA. 2025 AAMVA DL/ID Card Design Standard

Codes rather than words make the card easier for scanners to read. Automated systems at airports, government buildings, and law enforcement checkpoints pull data without relying on English labels, so a card scanned in any state returns the same structured fields.

Issued Date vs. Revision Date

Some cards print a second date that looks similar but means something different. A “REV” date on the back of a driver’s license (sometimes labeled “Rev Date” or “Revision”) marks when the state last updated the card’s physical design template. It isn’t personal to you. A card showing “REV 08/2022” on the back and “ISS 06/15/2026” on the front means the design was last updated in August 2022, and your card was produced in June 2026.

One boundary worth flagging: modern Social Security cards don’t carry a personal issuance date at all. The only date on the card is a revision date on the back, showing when the format was last redesigned. Older cards issued between 1936 and 1939 did include a typed date of issue, but the Social Security Administration dropped that field starting in 1940.2Social Security Administration. Social Security History If someone asks for your Social Security card’s issued date, they likely want the revision date on the back.

Date Formats on Federal Documents

Federal credentials don’t follow the state MM/DD/YYYY convention. U.S. passport books display dates in day-month-year order using a three-letter month abbreviation, such as 12 OCT 2024. That alphanumeric style removes the month-day ambiguity, which matters for a document used in countries with different date conventions.

U.S. Permanent Resident Cards (green cards) show both a “Card Expires” date and a “Resident Since” date. “Resident Since” marks when permanent residency was granted, which can be years before the card itself was produced. If your green card is a replacement or renewal, the card’s issue date and your “Resident Since” date won’t match. Older Resident Alien cards issued before certain redesigns may have no expiration date at all.3USCIS. 13.1 List A Documents That Establish Identity and Employment Authorization

Why the Issued Date Matters

The issued date anchors how long your card is valid. Most state licenses are valid for a fixed number of years from the issue date, so that date tells you when renewal is due. Renewing early resets the clock, since the new license carries a new issued date.

For employment verification, the issued date on a driver’s license or permanent resident card tells an employer whether the document is still current. Expired documents don’t satisfy Form I-9 requirements, and the issued date is the starting point for that calculation. Landlords, banks, and notaries apply the same logic.

The issued date is also a fraud check. If a card’s issued date predates the design’s revision date, the document is suspect, which is one reason the revision date is printed separately.

If the Issued Date Is Wrong

If your ID arrives with an incorrect issued date, contact the issuing agency for a corrected card. For driver’s licenses, that means your state’s DMV or equivalent licensing office. Most states waive the replacement fee when the agency caused the error, though policies vary. Bring or upload the incorrect card along with any receipt from the original transaction.

Don’t let the error sit. A mismatched issued date can trip automated verification at airports and during employment checks. Corrected cards usually arrive within two to three weeks by mail, and some states offer expedited processing for an additional fee.