VehiclesDB

California license plate: Permanent trailer

Issued today Documented since 2026. Trailer plates, issued by California Department of Motor Vehicles (DMV). One of 14 California license plates.

California (United States) license plate, Permanent trailer (documented since 2026), sample 6HB3288
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Format, years and the law

Format
9LL9999, for example 6HB3288 (L is any letter, 9 any digit)

The format above follows the issuing rules: a registration that fits it is one this series could have issued.

Years issued
Documented since 2026; the format is likely older than the first year documented. Still issued.
Vehicle class
Trailer: trailers and semi-trailers where separately serialized. Issued for trailer.
Colours
Characters #17195E
Size
12 × 6 in (305 × 152 mm) · every country's size
About this plate
PERMANENT TRAILER IDENTIFICATION. Recorded because California moved trailers to a PERMANENT registration in 2001 (reported) and because the predecessor, trailer plates with AT through HT prefixes, 1982-2001, is a dead series still lawfully on the road, the same shape as Florida's "Collectible" plate. Neither the current format nor the transition date is agency-sourced; both are recorded as gaps.

Legal basis and sources

  1. VIRPM 1.075: trailers are issued one plate https://www.dmv.ca.gov/portal/handbook/vehicle-industry-registration-procedures-manual-2/general-registration-informa...
  2. VIRPM 21.025 names 'permanent trailer identification (PTI)' as a live plate type https://www.dmv.ca.gov/portal/handbook/vehicle-industry-registration-procedures-manual-2/special-plates/california-ca...
  3. en.wikipedia.org https://en.wikipedia.org/wiki/Vehicle_registration_plates_of_California

This plate in your app

The series id is us-ca-permanent-trailer. The API returns its format, validation, colours and designs with the rest of California's series:

curl -s https://vehiclesdb.com/api/v1/plates/us-ca \
  -H "Authorization: Bearer $VEHICLESDB_API_KEY" \
  | jq '.series[] | select(.id == "us-ca-permanent-trailer")'
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