Singapore Driving Licence Number Regex for Python

What this pattern does

This page provides a lightweight, single-purpose regular expression for matching singapore driving licence number, ported and verified for Python. Identity and credential patterns need both correctness and safety, since they're frequent targets for adversarial input. The snippet below is ready to drop into your Python project — whether you're validating in a Django view, a FastAPI endpoint, or a standalone data processing script.

Python Implementation

# Singapore Driving Licence Number
# ReDoS-safe | RegexVault — Identity & PII > Driver's License Numbers

import re

singapore_driving_licence_number_pattern = re.compile(r'^[STFG][0-9]{7}[A-Z]$')

def validate_singapore_driving_licence_number(value: str) -> bool:
    return bool(singapore_driving_licence_number_pattern.fullmatch(value))

# Example
print(validate_singapore_driving_licence_number("S1234567D"))  # True

Test Cases

When to use this pattern

This pattern is drawn from the Identity & PII > Driver's License Numbers category and carries a ReDoS-safe certification. That matters for Python developers because particularly important in Python web servers where CPU-bound regex operations can stall concurrent request handling. RegexVault audits patterns against known backtracking attack vectors, ensuring you have the necessary context before using this regex in a high-stakes production environment.

Common Pitfalls

Technical Notes

Singapore driving licences use the same number as the NRIC for Singapore citizens and PRs. Foreign nationals have a FIN-based licence number. Same format as pii-nid-01 — the licence number IS the NRIC/FIN number.