Romanian Personal Numerical Code (CNP)

Personal Identification Number (C.N.P.) is a unique 13-digit number assigned to each person born in Romania and Romanian residents.

Romanian Personal Numerical Code (CNP) — Validates the position weighted Mod 11 checksum with date of birth and country code.

Regex expressions	Description	Score
`\b[1-9][0-9]{2}(?:0[1-9]\|1[0-2])(?:0[1-9]\|[12][0-9]\|3[01])(?:0[1-9]\|[1-3][0-9]\|4[0-6]\|51\|52)[0-9]{4}\b`	Matches a 13-digit number without a delimiter, where: Character 1: 1–9 Character 2–3: 0–9 Character 4–5: 01–12 Character 6–7: 01–31 Character 8–9: 01–46 or 51 or 52 Character 10–13: 0–9	1

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