Form 5429 at a glance
What it is: Form 5429 is the Temporary Third License Plate Application.
Where and when to file: Mail the completed application to the Motor Vehicle Bureau, P.O. Box 2076, Jefferson City, MO 65105-2076.
Section 301.140, RSMo, provides that a vehicle owner may obtain a temporary third license plate matching the existing or newly issued license plate assigned to the owner's vehicle.
A filled-in Form 5429 example: an owner applies for a temporary third plate
How to fill out Form 5429, box by box
Applicant Information
Under Applicant Information, enter the Name, Address, City, State, Zip Code, County and Telephone Number.
Vehicle Information
Under Vehicle Information, enter the Year, Make, License Plate Number and Vehicle Identification Number.
Certification and Signature
Under Certification and Signature, sign on the Signature line, then enter the Printed Name and the Date (MM/DD/YYYY).
Any false statement in this application is a violation of the law and may be punished by fine or imprisonment or both. By signing you certify that you are the owner of the referenced motor vehicle. You understand that the temporary third license plate only authorizes the use of the vehicle when the actual matching plate is valid and affixed to the vehicle as prescribed by law. You understand that the temporary third license plate is to be placed in the interior of the vehicle's rear window sufficiently as to not obstruct the driver's view and so that the plate configuration is clearly visible when the actual rear license plate cannot be viewed.
More rules for Form 5429
Phone: (573) 526-3669. E-mail: mvbmail@dor.mo.gov.
Visit http://dor.mo.gov/motorv/licplate.php#templicplate for additional information.
Common questions about Form 5429
Where do I file it?
Mail the completed application to the Motor Vehicle Bureau, P.O. Box 2076, Jefferson City, MO 65105-2076.
Are there fees?
The fee is $14.00 ($5.00 license fee and $9.00 processing fee), by check made payable to the Department of Revenue (checked November 2, 2026).
Sources
[1] Form 5429 (Revised 08-2025), Temporary Third License Plate Application, Missouri Department of Revenue (the Official source link on this page).