Home Driver's License Montana
Montana Driver's License validator
How the Driver's License format works
- Format
- 9 digits, 13-14 digits, or 1 letter + 8 digits
- Example
- 123456789
Things to watch for
- Format-only check — does not confirm the license actually exists, is valid, or is registered to a real driver
- UNCERTAIN: Montana's documented formats vary the most of any state (short numeric, long numeric with embedded birth-date components, and letter-prefixed) — flag for extra review
- Runs entirely in your browser — nothing you type is transmitted or stored
^(\d{9}|\d{13,14}|[A-Z]\d{8})$A Montana driver’s license number shows the widest format variety of any US state covered here, issued by the Montana Motor Vehicle Division (MVD): a plain 9-digit numeric form, a much longer 13-to-14-digit numeric form that appears to embed birth-date-like components, and a letter-plus-8-digit form (e.g. A12345678). Three genuinely different shapes, spanning from 9 to 14 characters, are all documented as valid Montana license numbers.
Reading the format
This checker accepts all three documented lengths and doesn’t attempt to decode or verify whatever birth-date-like structure the long 13-14 digit form may embed — it confirms the string fits one of the three known shapes and rejects anything that fits none of them.
What a pass doesn’t tell you
None of Montana’s three documented forms carry a check digit this tool can verify. A pass confirms only that the shape is right, not that MVD issued it, that the license is current, or that it belongs to a real driver.
Scope: format-only validation across all three documented lengths, entirely client-side.
Content last reviewed 2026-08-09.
Driver's License FAQ
Why does Montana have such different license number lengths?
Montana's Motor Vehicle Division (MVD) has documented the widest length spread of any US state: a 9-digit numeric form, a much longer 13-to-14-digit numeric form that appears to embed birth-date-like components, and a letter-plus-8-digit form.
Does this checker decode the long 13-14 digit Montana form?
No. Even though that longer form is believed to embed birth-date-like components, this tool only checks that the length and character set match — it doesn't parse or verify any date encoded inside it.
Does a valid format confirm the license is currently active?
No. It only confirms the string matches one of the three documented shapes, not that MVD has that number on file or that the license is valid.