NSW Driver Licence Number

Detects New South Wales driver licence numbers in the established eight-digit or four-digit-plus-two-letter shapes. Enforceable tiers require an explicit driver-licence-number label and NSW context; the strict tier additionally requires Transport for NSW, Service NSW, or a legacy NSW road authority.

Type: regex
Engine: universal
Confidence: medium
Confidence justification: Medium confidence: the candidate shapes collide with routine identifiers, while a nearby licence-number label and NSW context materially improve precision. Authority evidence supports high-confidence classification.
Jurisdictions: au-nsw
Regulations: Privacy Act 1988 (Cth), Privacy and Personal Information Protection Act 1998 (NSW), Road Transport Act 2013 (NSW)
Frameworks: ISO 27001
Data categories: pii, government-id
Scope: specific
Risk rating: 5
Platform compatibility: Purview: Compatible, GCP DLP: Unsupported, Macie: Unsupported, Zscaler: Compatible, Palo Alto: Unsupported, Netskope: Unsupported

Pattern

\b(?:(?!0{8}\b)\d{8}|\d{4}[A-Z]{2})\b

Corroborative evidence keywords

NSW driver licence number, New South Wales driver licence number, Transport for NSW, Service NSW

Proximity: 300 characters

Should match

40829161 — Exact 65 discovery probe - bare eight-digit NSW-shaped candidate
NSW driver licence number: 40829161 — Exact 75 balanced probe - labelled candidate with NSW context but no authority
Transport for NSW - NSW driver licence number: 40829161 — Exact 85 strict probe - labelled candidate with NSW authority
Service NSW driver license no. 4829AB — Strict alternate four-digit-plus-two-letter shape

Should not match

Invoice number: 40829161 — Eight-digit invoice collision has no licence label or NSW context
QLD driver licence number: 40829161 — Wrong-state collision must not reach an enforceable NSW tier
Service NSW vehicle registration number: 40829161 — Sibling transport identifier is not a driver licence number
NSW driver licence card number: 40829161 — Card number label must not be treated as the stable licence number
Template example: NSW driver licence number: 40829161 — Template fixture is excluded

Known false positives

Eight-digit invoices, accounts, orders, and registration references. Mitigation: Require the labelled-number primary and NSW jurisdiction context for enforcement.
Other states can issue numeric licence numbers with the same length. Mitigation: Require explicit NSW context and use NSW authority evidence for confidence 85.