What Is a Biometric Passport? Symbol, Chip & How to Check

If you’ve ever glanced at the cover of your passport and spotted a small circular symbol, you’re looking at a biometric passport — essentially a traditional travel document with an embedded microchip storing your photo and personal details. The UK has issued these since 2006, and the EU Entry/Exit System launching on 12 October 2025 puts that chip data front and centre at border crossings. Whether you’re checking your own document or applying for a new one, here’s what you actually need to know.

Also known as: ePassport or digital passport · Key feature: Embedded microchip · Data stored: Personal info and photo · Symbol location: Front cover · Irish format: 2 letters + numbers

Three facts about biometric passports that define what they are and how they work.

What are biometric passports?

A biometric passport, also called an ePassport or electronic passport, looks identical to a regular passport on the outside — same burgundy or navy cover, same size, same layout. The difference sits inside the binding: a tiny RFID microchip that stores your digitised facial image and biographical information, readable by automated border gates and inspection systems (Wikipedia — global standards and EU comparisons). The chip holds at least 32 kilobytes of data using EEPROM storage, typically in JPEG or JPEG2000 format (Wikipedia — global standards and EU comparisons). Every biometric passport conforms to ICAO Document 9303, the international standard governing biometric file formats and transmission protocols (Wikipedia — global standards and EU comparisons).

Key features of biometric passports

• Contactless smart card technology with ISO/IEC 14443 interface (Wikipedia — global standards and EU comparisons)
• Encrypted chip data readable only by authorised eReaders (Unlock — UK chip contents and history)
• Oval hologram and tilting window on biographical data page showing photo and date of birth (UK Government — official passport technical details)
• 9-digit passport number laser perforated through all pages (UK Government — official passport technical details)

The implication: the chip does not replace the printed page — it supplements it, giving border authorities a second, harder-to-forge layer of identity verification.

Differences from normal passports

A traditional passport relies entirely on printed ink, photographs and security features visible to the naked eye. A biometric passport adds a digital layer that is significantly harder to replicate. Chip data is encrypted and can only be accessed by compatible eReaders at border control points (Unlock — UK chip contents and history). The biometric chip makes document fraud more difficult because the stored facial template — encoded distances between eyes, nose, mouth and ears — does not appear anywhere on the physical document (Unlock — UK chip contents and history). That said, the chip stores the same core information found on the biographical page; it does not add new categories of data.

How do I know if my passport is biometric?

The fastest way to check is to look at the front cover. If your passport is biometric, you’ll find a small circular symbol — a camera icon inside a circle, sometimes with a rectangular element — positioned near the bottom or centre of the cover (Post Office — UK ePassport practical guide). This international symbol indicates the presence of a biometric chip conforming to ICAO standards (Post Office — UK ePassport practical guide).

Check the biometric symbol

• Look for a camera-like icon inside a circle on the passport cover
• The symbol appears internationally and signals ICAO-compliant chip technology
• Irish ePassports feature a gold ePassport symbol on the front cover (Irish Times — Irish launch details)

The pattern: virtually all countries issuing biometric passports use this shared symbol, so the same visual check applies whether you hold a UK, Irish or European document.

Look at passport number for Irish passports

Irish biometric passports follow a specific numbering format. If your passport number begins with two letters followed by numbers — for example, “AB1234567” — you hold a biometric ePassport (Irish Times — Irish launch details). First-time applicants whose most recent previous passport was not biometric are treated as new applicants under Irish rules (Irish Times — Irish launch details).

What this means: if you applied for your current Irish passport after the ePassport launch, the 2-letter prefix confirms you’re carrying a biometric document.

Is an Irish passport biometric?

All new Irish passports issued after the ePassport launch are biometric. The Irish ePassport programme introduced a microchip embedded in the photo page, covered by a gold ePassport symbol on the front cover (Irish Times — Irish launch details). Irish ePassports feature a HID Global polycarbonate data page with a contactless chip and a Crack Prevention Feature designed for durability of up to 10 years (Professional Security — Irish tech specs).

Identifying Irish biometric passports

• Gold circular symbol on the front cover (Irish Times — Irish launch details)
• Two-letter prefix in passport number format
• Non-biometric Irish passports are being phased out — the replacement programme runs within 10 years of the 2006 launch (Irish Times — Irish launch details)

Irish passport card usage

The Irish passport card is a separate document from the passport book. The card is designed primarily for travel within the EU and EEA using eGate lanes. However, the passport card cannot be used for air travel to non-EU destinations in the same way the full book can. For flights to the UK or other destinations outside the Common Travel Area, the full biometric passport book is required.

The trade-off: the card is convenient for short EU trips but carries limitations for broader international travel — something worth remembering before you leave the full passport at home.

Are all passports now biometric?

Not yet globally, but the rollout is extensive. The UK has issued biometric passports since 2006, with all new applications receiving updated biometric versions since 2010 (Unlock — UK chip contents and history). Ireland followed the same trajectory after launching its ePassport programme in 2006 (Irish Times — Irish launch details).

Global adoption status

Most countries worldwide now issue biometric passports, following ICAO standards set out in Document 9303 (Wikipedia — global standards and EU comparisons). The EU EES launching in October 2025 will require biometric data — including fingerprints for non-EU nationals — at Schengen border crossings (London Southend Airport — related EES timeline). While an exact global adoption percentage is difficult to establish, the majority of developed nations have completed or are completing transition to biometric documents.

UK and Ireland specifics

• UK biometric passports issued since 2006; all new issues are biometric since 2010 (Post Office — UK ePassport practical guide)
• UK passports use laser engraving and inkjet printing for personalisation, with digital images on multiple pages and embedded in the chip (UK Government — official passport technical details)
• Irish ePassport launched around 2006; replacement of non-biometric passports within 10 years (Irish Times — Irish launch details)
• UK and Irish nationals are exempt from the UK ETA scheme, but the scheme fully enforces from 25 February 2026 for other travellers (Fragomen — UK-Ireland policy intersection)

The pattern: UK and Ireland are fully on the biometric system for new issues, making older non-biometric passports the minority that is actively being replaced.

Where is the chip in a biometric passport?

The microchip is embedded within the passport booklet itself — typically in the photo page or data page, laminated between layers of the document. In UK passports, the chip sits behind the biographical data page, which itself features an oval hologram and tilting window with your photo and date of birth (UK Government — official passport technical details). In Irish passports, the HID Global polycarbonate data page integrates the contactless chip directly into the page structure (Professional Security — Irish tech specs).

Biometric passport symbol explained

• The circular camera icon on the front cover is the universal indicator of a biometric chip
• This symbol is defined by ICAO standards and appears on compliant passports worldwide
• On Irish passports, the symbol appears in gold; on many other passports it appears in silver or black

What this means: you don’t need to open the passport or scan the chip to confirm biometric status — the cover symbol is the primary visual indicator.

Photo requirements

A biometric passport photo must meet specific standards. The image is stored digitally on the chip and used for facial recognition at automated border gates. UK ePassport gates require users to be over 18 and hold a UK or EU citizen passport with the biometric symbol (Post Office — UK ePassport practical guide). The photo requirements are stricter than for a standard passport because the digital image must support facial recognition algorithms — factors like head position, lighting, expression and background are all specified in ICAO standards.

How to get a biometric passport

If you need to apply for a biometric passport — whether you’re a first-time applicant or renewing an expired document — the process runs through your national issuing authority. In the UK, HM Passport Office handles all applications, and all new passports issued are biometric versions (Post Office — UK ePassport practical guide). In Ireland, the Passport Service issues ePassports to eligible applicants.

UK application steps

1. Apply online through the HM Passport Office website or use a paper form
2. Provide a digital photo that meets ICAO biometric standards
3. Submit identity documents and proof of British or Irish citizenship
4. Pay the relevant fee — standard processing takes approximately 3 weeks
5. Receive your biometric passport by recorded delivery

For UK applicants, the passport book number consists of 9 numerical digits laser perforated through every page from the title page to the back cover (UK Government — official passport technical details).

Irish application steps

1. Apply online through the Department of Foreign Affairs passport service
2. First-time applicants whose most recent passport was not biometric are treated as first-time applicants
3. Provide a passport photo that meets ePassport standards
4. Submit supporting identity documentation
5. Pay the applicable fee — processing times vary by application type

The implication: any renewal or first-time application will automatically result in a biometric passport, regardless of whether the previous document was non-biometric.

“The British Government have been issuing updated biometric passports to UK nationals since 2010.”

— Post Office Guide, Official Guide

“All new Irish passports will be issued in biometric form following yesterday’s launch of the new ePassport.”

— Irish Times, Newspaper

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Countries like Switzerland are advancing similar tech with a Swiss biometric ID card set for 2026 rollout, embedding fingerprints and facial scans on chips.

Frequently asked questions

Summary

A biometric passport is simply a standard passport that adds an encrypted microchip to the package — the chip stores your facial image and biographical details in a format readable by automated border systems. The UK has been issuing these since 2006, Ireland since roughly the same period, and the EU’s new Entry/Exit System launching 12 October 2025 makes that chip data increasingly central to international travel. For UK and Irish travellers, the practical takeaway is straightforward: if your passport was issued or renewed in the past two decades, it is almost certainly biometric, and you can confirm this in seconds by checking for the circular camera symbol on the cover.