Federal guide
REAL ID verification: what a barcode scanner can and can’t tell you
By Apparent Logic, LLC · Updated October 5, 2026
Legal sources last checked September 2026 · How we review sources
General information, not legal advice. Laws and permit conditions vary; ask your lawyer or regulator what applies. Check ID is a tool for your staff, not a guarantee of compliance or a legal defense. No system can catch every fake ID. Staff must inspect the document and its holder and make the final decision.
The federal REAL ID rules cover which state cards federal agencies accept for “official purposes,” which 6 CFR 37.3 defines as accessing federal facilities, boarding federally regulated commercial aircraft, and entering nuclear power plants. Age checks at a bar or shop aren’t among them.
At a glance
- Which IDs a seller may accept for an age check is set by laws other than REAL ID: state law and, for tobacco and vapes, 21 CFR 1140.14.
- A compliant card bears a DHS-approved marking (6 CFR 37.17(n)). Its barcode may also carry a one-letter compliance code (AAMVA element DDA): “F” compliant, “N” non-compliant.
- DDA is optional. The AAMVA standard requires its mandatory and optional data elements to be unencrypted and makes a digital seal optional, so the barcode alone doesn’t show who produced a card.
- Card-based enforcement began May 7, 2025. An agency with a phased plan must reach full enforcement no later than May 5, 2027 (6 CFR 37.5(b), (d)).
What the law says
Where REAL ID applies
6 CFR part 37 bars federal agencies from accepting a non-compliant card for an official purpose. TSA’s About REAL ID page says: “The Act’s prohibitions do not affect other uses of driver’s licenses or identification cards unrelated to official purposes as defined in the Act.”
Age checks at bars and shops fall under other laws, such as state alcohol and cannabis rules and, for tobacco and vapes, the FDA rule at 21 CFR 1140.14 (photo ID showing the date of birth).
Enforcement dates
Card-based enforcement began May 7, 2025. A TSA/DHS final rule (90 FR 3472) lets a federal agency phase in enforcement if it decides that is appropriate, coordinates the plan with DHS and publishes it, reaching full enforcement no later than May 5, 2027 (6 CFR 37.5(d)). As of September 23, 2026, TSA lists the CFTC, the Department of Commerce, the NRC (for NRC-licensed nuclear power plants only) and the TVA as having coordinated phased plans. TSA checkpoints are not on the list.
How a card shows it
6 CFR 37.17(n) requires a compliant card to bear “a DHS-approved security marking … reflecting the card’s level of compliance.” Enhanced Driver’s Licenses from Michigan, Minnesota, New York, Vermont and Washington are an accepted alternative; TSA says most carry no star, and that EDLs can be identified by a U.S. flag and the word “Enhanced” at the top of the card.
The AAMVA DL/ID Card Design Standard (2025) defines barcode element DDA, “Compliance Type”: “F” = compliant, “N” = non-compliant. The standard lists DDA as optional (Table D.4), so a genuine card may not carry it.
What the barcode can’t show
The AAMVA standard says “All mandatory and optional data must be unencrypted,” and lists a digital seal as optional. A counterfeit card can therefore encode “F,” and the barcode alone does not show who produced the card.
Mobile IDs and passports
TSA says a federal agency may accept a mobile driver’s license for official purposes only if the issuing state holds a waiver under 6 CFR 37.7 or the agency has its own acceptance policy. TSA accepts a passport in place of a REAL ID card.
What it means at the counter
REAL ID status says nothing about age. A card without a star is not fake for that reason alone: states may issue non-compliant cards (6 CFR 37.71), and DHS estimated about 110 million non-compliant marked cards and 14 million unmarked legacy cards were in circulation as of January 2024 (90 FR 3472).
Where Check ID fits
Check ID reads the barcode on US and Canadian driver’s licenses and ID cards and compares the birth date and expiry date with your rules. A result such as Verified means only that the dates on the document meet those rules. Your staff make the call.
From version 3.0, Check ID also shows the barcode’s REAL ID indicator: “REAL ID” for “F,” “Not REAL ID” for “N,” or “REAL ID not encoded” for anything else. The scan details describe the first two as “as encoded on the document.” Earlier versions don’t show it, and Apple Wallet IDs never report it. The indicator never changes the result. Check ID reads what an ID encodes. It can’t tell whether a card is genuine: a well-made fake can carry a valid barcode.
Personal scan history keeps the last 7 days on your device or in your own iCloud, with the REAL ID indicator from version 3.0. Check ID for Teams keeps scan records for two years by default. A scan record never keeps the name, date of birth, address, ID number or a picture of the ID, on any plan.
Whether a scan helps your situation under these rules is a question for your lawyer or regulator. Check ID is not affiliated with TSA, DHS or any government agency, and TSA and DHS have not approved or endorsed it. Using it is not a certification of compliance with any law.
Frequently asked questions
Where is a REAL ID required?
The federal REAL ID rules cover which state cards federal agencies accept for “official purposes” (6 CFR 37.3, 37.5). Age checks at a bar or shop are not among them; state law and, for tobacco and vapes, 21 CFR 1140.14 set which IDs a seller may accept. Even for official purposes, TSA says other documents, such as a passport, are accepted instead.
Can a scanner verify that a card is REAL ID compliant?
Not from the barcode alone. A barcode scan reads AAMVA element DDA as encoded on the card. The AAMVA standard requires that data to be unencrypted and lists a digital seal only as optional, so the barcode by itself does not show who produced the card.
Why does a card sometimes show no REAL ID status?
Because the AAMVA standard lists the DDA field as optional, and many cards don’t carry it. A missing field doesn’t show compliance or non-compliance. The marking on the front of the card is the visual indicator.
Does REAL ID apply to charter flights?
NBAA, a trade association, reported on February 2, 2026 that REAL ID requirements apply to Part 135 charter flights under the Twelve Five Standard Security Program but not to Part 91 flights. Our private aviation guide covers passenger ID checks.
Sources
- 6 CFR part 37, retrieved September 2026.
- 90 FR 3472, TSA/DHS final rule (January 14, 2025), retrieved September 2026.
- TSA, About REAL ID, retrieved September 2026.
- TSA, REAL ID FAQs, retrieved September 2026.
- TSA, Identification, retrieved September 2026.
- TSA, REAL ID Mobile Driver’s Licenses, retrieved September 2026.
- AAMVA DL/ID Card Design Standard, 2025 edition (PDF), retrieved September 2026.
- 21 CFR 1140.14, retrieved September 2026.
- NBAA, “TSA Increases REAL ID Enforcement, Releases Tool for Alternate Compliance Options” (February 2, 2026), retrieved September 2026.