Do I need a notary for the Certificate of Trailer Number Assignment?

No. The form has signature and date fields for the applicant and inspector, but it does not require notarization.

How do I submit the trailer number assignment application?

Present Section A to your local county treasurer’s office. For title and registration, bring completed Sections A and B, the MCO, and bill of sale to the treasurer’s office in your county of residence.

What information does the application request?

Section A asks for trailer and applicant information, and Section 3 requests builder information for new trailers. Section B records the assigned number and inspection certification.

What happens after the number is assigned?

Stamp the assigned number in its entirety on the trailer as instructed, then have a Highway Patrol trooper, local peace officer, or driver licensing station employee verify it and complete the inspection certification.

Hill County, MT · Hill County

No notary required

Certificate of Trailer Number Assignment

Trailer owners complete this application to request a state-assigned identification number through their local county treasurer’s office.

At a glance

Issued by: City of Hill County · Hill County, Hill County, Montana
Notarization: Not required: file this form without a notary.
Official source: mvdmt.gov
Blank form: Download the PDF
Catalogued: Oct 5, 2026
Machine-readable: JSON record · about the forms index

What this form is

Use Section A to provide trailer and applicant details and request a state-assigned vehicle identification number. After the number is stamped on the trailer and inspected, complete Section B; for title and registration, present the completed form with the MCO and bill of sale to the county treasurer’s office in your county of residence.

Who needs it

Trailer owners seeking a state-assigned identification number, and titling customers submitting the completed certificate for title and registration, use this form.

How to submit it

Present Section A to your local county treasurer’s office to obtain a state-assigned number. For title and registration, present the completed Sections A and B, MCO, and bill of sale to the treasurer’s office in your county of residence.

About notarization

This form is signed and dated without a notary; the applicant and inspector provide signatures, and no notarized or sworn attachment is stated.

How to submit this form

1
Download the Certificate
Download the Certificate of Trailer Number Assignment PDF.
2
Complete Section A
Fill in the trailer and applicant information; complete builder information for a new trailer.
3
Request the Assigned Number
Present Section A to your local county treasurer’s office.
4
Complete Inspection Certification
Stamp the assigned number on the trailer and have an eligible inspector verify it and complete Section B.
5
Submit for Title and Registration
Present completed Sections A and B, the MCO, and bill of sale to the treasurer’s office in your county of residence.

Frequently asked questions

Do I need a notary for the Certificate of Trailer Number Assignment?: No. The form has signature and date fields for the applicant and inspector, but it does not require notarization.
How do I submit the trailer number assignment application?: Present Section A to your local county treasurer’s office. For title and registration, bring completed Sections A and B, the MCO, and bill of sale to the treasurer’s office in your county of residence.
What information does the application request?: Section A asks for trailer and applicant information, and Section 3 requests builder information for new trailers. Section B records the assigned number and inspection certification.
What happens after the number is assigned?: Stamp the assigned number in its entirety on the trailer as instructed, then have a Highway Patrol trooper, local peace officer, or driver licensing station employee verify it and complete the inspection certification.

Need something notarized?

This Certificate of Trailer Number Assignment doesn’t need a notary, but if you have another Hill County form that does, a commissioned online notary can help.