What is the difference between a machine-readable and non-machine-readable passport?

A machine-readable passport includes the standardized MRZ strip at the bottom of its data page, along with, in most modern cases, an embedded RFID chip storing the same core data digitally. A non-machine-readable passport lacks that strip entirely, meaning any information about the holder has to be read directly off the printed page and typed in by hand.

The practical difference shows up immediately at any automated checkpoint. A machine-readable passport can be scanned by a passport reader or a camera-based system in a second or two, with the document number, name, date of birth, and expiry date extracted automatically and cross-checked using the built-in check digits.

A non-machine-readable passport offers none of that. An officer or clerk has to read the printed text and enter it manually, which is slower and introduces the possibility of transcription errors that the MRZ's check-digit system is specifically designed to catch.

Non-machine-readable passports have become rare. ICAO set a deadline requiring all member states to stop issuing them by 2015, largely because of exactly these efficiency and accuracy benefits, and because a standardized global format made international travel logistics dramatically simpler.

Some older passports issued before that transition remain in circulation until they expire, but the overwhelming majority of passports in active use today are machine-readable.

The distinction matters for any business relying on automated document scanning, because a document without an MRZ simply won't yield the fast, structured data extraction that MRZ-equipped documents allow. In practice this is rarely an issue anymore given how few non-machine-readable passports remain valid, but a robust identity verification workflow still needs a fallback path, typically manual review or visual zone OCR alone, for the rare document that doesn't include one.

ScanDoc's scanning flow is built to handle both cases gracefully. When an MRZ is present, it becomes the fast, standardized backbone of the extraction and validation process.

When it isn't, the system falls back to visual zone OCR to still capture the necessary fields, just without the additional check-digit validation that MRZ provides.