France Driver's License Number

Detects France driver's license number patterns. This pattern is based on a Microsoft Purview built-in sensitive information type. Users already running Purview may prefer to enable the built-in SIT directly, or use this version as a starting point for customisation.

Type

regex

Engine

universal

Confidence

medium

Confidence justification

Medium confidence: pattern has structural constraints but corroborative keywords are recommended to reduce false positive rates. Added context gating and exclusion rules improve precision and reduce incidental matches.

Detection quality

Verified

Jurisdictions

fr, eu

Regulations

BDSG, CNIL / LIL, GDPR

Frameworks

ISO 27001, ISO 27701

Data categories

pii, government-id

Scope

narrow

Risk rating

6

Platform compatibility

Purview: Compatible, GCP DLP: Compatible, Macie: Compatible, Zscaler: Compatible, Palo Alto: Compatible, Netskope: Compatible

Pattern

\b\d{12}\b

Corroborative evidence keywords

driver, licence, license, driving, DL, permis de conduire, ID number, identification, ID card, permit, registration, certificate, field, column, row, entry, record, value, form, register (+21 more)

Proximity: 300 characters

Should match

• 123456789012 — Standard 12-digit French driver's license number
• 987654321098 — Another valid 12-digit format
• 12345678901 — 12-digit number with leading zero

Should not match

• 12345678901 — Too few digits (11 instead of 12)
• 1234567890123 — Too many digits (13 instead of 12)
• template example placeholder record identifier — Template/sample context should be excluded even when anchor words are present

Known false positives

• Generic numeric sequences matching the driver's license format appearing in unrelated contexts. Mitigation: Require corroborative evidence keywords within the proximity window to confirm driver's license context.

References

• France driver's license number entity definition - Microsoft Learn