How to Complete CBP Form 4455: Certification and Return Entry

CBP Form 4455, the Certificate of Registration, is the document you use to register foreign-made goods with U.S. Customs and Border Protection before they leave the country temporarily, so they can come back without being taxed as if they were new imports. It is aimed primarily at commercial shipments and professional equipment sent abroad for repair, alteration, or processing, and at other situations where the simpler personal-effects form is not enough.¹

Form 4455 or Form 4457

Most individual travelers do not need Form 4455. CBP maintains a second, simpler document, Form 4457, titled “Certificate of Registration for Personal Effects Taken Abroad,” and that is the right form for a tourist who wants to register a foreign-made camera, watch, or laptop before a trip.¹

Form 4455 is the fallback. CBP describes it as being used “primarily for the registration, examination, and supervised lading of commercial shipments of articles exported for repair, alteration, or processing, which will subsequently be returned to the United States either duty free or at a reduced duty rate.”¹ It also picks up situations Form 4457 does not handle well, such as theatrical scenery, motion-picture equipment, or tools of a trade.

The regulation at 19 CFR 148.1 confirms the split: Form 4457 is the default for foreign-origin personal effects, and Form 4455 “may be required in any case in which Customs form 4457 will not adequately serve the purpose of registration.”² Shipping equipment to a foreign workshop, sending commercial goods overseas temporarily, or moving professional gear on a job? Reach for 4455. Packing your own belongings for a personal trip? Start with 4457.

What You Can Register

Only items of foreign origin that carry serial numbers or other permanently affixed unique markings can be registered.² The reason is practical: on return, a CBP officer needs to verify that the specific item in front of them is the one on your paperwork. A serial number does that; a generic description does not.

Cameras, laptops, smartphones, video equipment, musical instruments, and specialized professional tools are the usual candidates. Registration is most valuable for expensive foreign-made items you bought inside the United States, because a returning officer otherwise has no way to distinguish those from identical items purchased abroad.

Jewelry and Items Without a Serial Number

Jewelry, antiques, and some high-end watches often have no manufacturer-affixed serial number and cannot be registered on either form. CBP accepts alternative proof of prior ownership: a dated jewelry appraisal, an insurance policy naming the item, or a purchase receipt.³ A dated photograph showing you wearing or holding the item before you leave works too. Keep a small file of these on your phone if you travel often with valuables.

Filling Out the Form

You can download Form 4455 from the CBP website or pick up a copy at any CBP office.⁴ Complete the top section with your personal information and sign as owner or agent. In the body, list each item with enough detail for an officer to match the description to the physical goods, and include the serial number for every item that has one.

The form asks you to check the purpose of the export. The choices are use abroad, repair, alteration, replacement, and processing.⁵ The category you pick drives how CBP treats the goods on return, especially whether duty gets assessed on work performed overseas, so choose carefully. Make a copy for your files before you hand it in.

You do not need to wait until you are at the port of departure. CBP tells travelers to bring items to a local CBP office, which you can visit well ahead of your trip or shipment.⁶ Doing it in advance avoids the scramble of trying to find an officer and wait through an inspection on the day you fly.

Getting the Form Certified

Bring the completed form and every item on it to a CBP officer. The officer will physically examine each article, check the descriptions and serial numbers against the form, and confirm everything matches. There is no way around this inspection; it is the whole point.

Once the officer is satisfied, they sign, date, and stamp the form and return the certified original to you.⁵ Store it carefully. Without the stamped form, you lose the ability to prove the goods were already in the country before they left.

Coming Back Into the U.S.

When you re-enter, present the stamped Form 4455 with the registered items to the CBP officer at your port of arrival. If the officer verifies the goods against the form and the items came back unchanged, you claim duty-free entry.⁵

The registration is not single-use. Under 19 CFR 148.1, the form stays valid for reuse as long as it remains legible enough to identify the registered articles.² One registration can cover every future trip with the same equipment, so protect the paper. A laminated sleeve is worth the small effort.

Duty on Repairs and Alterations Done Overseas

Registration keeps you from being taxed on the item itself. It does not eliminate duty on work performed abroad. If your goods were repaired, altered, or processed while outside the country, the cost of that work is generally dutiable, and Form 4455 carries a printed note to that effect.⁵

The rule sits in HTSUS subheadings 9802.00.40 and 9802.00.50, which allow articles exported for repair or alteration to be assessed duty only on the value of the foreign work rather than on the full value of the item.⁷ Send a $5,000 machine overseas for a $300 repair and duty is calculated on the $300. The rate applied to that repair cost is the same rate that would apply to the article as a whole.

To get the reduced assessment, you need documentation from the foreign supplier. Ask for an invoice that itemizes the cost of repairs, alterations, or processing separately from anything else.⁸ If the item was replaced with something more valuable, the invoice should show both the new price and the difference. Without a clear invoice, the port director will estimate the value, and that estimate rarely favors you.

When an ATA Carnet Makes More Sense

If you regularly travel internationally with professional equipment, commercial samples, or exhibition materials, an ATA Carnet may serve you better than Form 4455. A carnet is an international customs document accepted in over 100 countries that allows temporary import and export of goods without paying duty or value-added taxes at each border.⁹

A carnet is valid for one year and covers unlimited exits and entries across participating countries during that period. When goods covered by a U.S.-issued carnet return to the United States, the carnet itself serves as the registration document and replaces Form 4455.⁹ Carnets cover three categories: commercial samples, professional equipment, and items for exhibitions and fairs. They do not cover consumables, goods for sale, or personal-use merchandise. If your goods fall outside those three categories, Form 4455 or 4457 remains the right tool.

1
Federal Register. Certificate of Registration (CBP Forms 4455 and 4457)
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eCFR. 19 CFR 148.1 – Registration of Effects to Be Taken Abroad
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U.S. Customs and Border Protection. Registering Jewelry With U.S. Customs and Border Protection Prior to Traveling Abroad
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U.S. Customs and Border Protection. Mail – Goods for Repair or Alteration
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U.S. Customs and Border Protection. CBP Form 4455 – Certificate of Registration
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U.S. Customs and Border Protection. Registration for Dutiable Personal Articles Prior to U.S. Departure
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eCFR. 19 CFR 10.8 – Articles Exported for Repairs or Alterations
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U.S. Customs and Border Protection. Duty on Goods Purchased Overseas Being Exported for Repair, Alteration, Etc.
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U.S. Customs and Border Protection. ATA Carnet Frequently Asked Questions