SA Driver Licence Number

Detects South Australian driver licence and learner permit numbers in the established one-letter-plus-five-or-six- digit shape. Enforceable tiers require an explicit licence-number label and South Australian context; the strict tier additionally requires Service SA or Department for Infrastructure and Transport authority evidence.

Type: regex
Engine: universal
Confidence: medium
Confidence justification: Medium confidence: the alphanumeric shape collides with product and case codes, while a driver-licence-number label and South Australian context support balanced classification and authority evidence supports strict classification.
Jurisdictions: au-sa
Regulations: Motor Vehicles Act 1959 (SA), Privacy Act 1988 (Cth)
Frameworks: ISO 27001
Data categories: pii, government-id
Scope: specific
Risk rating: 5
Platform compatibility: Purview: Compatible, GCP DLP: Compatible, Macie: Compatible, Zscaler: Compatible, Palo Alto: Compatible, Netskope: Compatible

Pattern

\b[A-Z]\d{5,6}\b

Corroborative evidence keywords

SA driver licence number, South Australian driver licence number, Service SA, Department for Infrastructure and Transport

Proximity: 300 characters

Should match

S482915 — Exact 65 discovery probe - bare South Australian-shaped candidate
SA driver licence number: S482915 — Exact 75 balanced probe - labelled candidate with SA context but no authority
Service SA South Australian driver licence number: S482915 — Exact 85 strict probe - labelled candidate with Service SA authority
Department for Infrastructure and Transport SA learner permit no. A48291 — Strict five-digit learner permit variant

Should not match

Product code: S482915 — Alphanumeric product collision has no licence label or SA context
TAS driver licence number: S482915 — Wrong-state collision must not reach an enforceable SA tier
Service SA vehicle registration number: S482915 — Sibling transport identifier is not a driver licence number
SA software licence number: S482915 — Software licence collision lacks the driver primary
Example data: SA driver licence number: S482915 — Example fixture is excluded

Known false positives

Product codes, case references, software licences, and other letter-prefixed identifiers. Mitigation: Require an explicit driver licence or learner permit number label and South Australian context.
Tasmanian or other alphanumeric licence-number shapes. Mitigation: Require SA context and Service SA or DIT evidence for strict classification.