The Customs Rulings Online Search System, CROSS, holds more than 220,000 published rulings going back to 1989, searchable by keyword, HTS number, and subject. Before drafting a request, search by physical description rather than by your product name, and search by candidate HTS number to see what CBP has actually placed in that subheading. That second search is often more instructive than the heading text, because it shows how CBP reasons about your category.
An existing ruling on an identical product does not bind CBP to give you the same treatment, since a ruling technically applies only to the party and goods described in the original request. But it is persuasive guidance, and it often answers the question outright, which saves you a filing. If nothing in CROSS fits, file through CBP's eRulings portal, which routes classification requests to the National Commodity Specialist Division in New York.
A complete request describes the goods in full: composition, materials, function, how they are made, and how they are sold, with samples or photographs where the physical article decides the question. The request must concern a real, prospective transaction. CBP will not answer hypothetical questions, and it will not rule on goods that have already arrived, been entered, or become the subject of a protest or a court case. That timing rule is the one importers miss most often: by the time the classification question hurts, the goods are usually already here, and the ruling window has closed.
Classification requests go to the NCSD in New York, and CBP aims to issue most of them within about 30 calendar days. More complex requests routed to Headquarters generally take around 90 days. Valuation and origin questions can take longer, and they go to different offices, so file early enough that the answer arrives before the purchase order does.
Once issued, the ruling binds CBP to the classification for goods matching the facts you described, at every US port. That is the whole point, and it is also the risk. If the ruling comes back with a worse code than the one you have been using, you are expected to act on it, and continuing to enter under the old code after a ruling says otherwise is a reasonable-care problem. File the ruling with your entry documents, keep it with the product file, and re-check it when the product changes: a ruling binds only as long as your product and the relevant law stay the same.
CBP can modify or revoke a ruling, but not silently. Under 19 USC 1625, if a ruling has been in effect for at least 60 days, CBP must publish a proposed change, allow at least 30 days for comment, publish a final decision within 30 days after comments close, and then wait 60 days before the change takes effect. Watch the Customs Bulletin for your product's rulings the way you watch your duty rates. For the filing that follows a classification decision, how to read a CBP Form 7501 entry summary shows where the code lands on the entry, and country of origin marking covers the label that holds the shipment once the code is set.
A written decision from US Customs and Border Protection on how your specific goods will be classified, valued, or treated. It binds CBP at every US port for goods matching the facts you described, and it is issued under 19 CFR Part 177.
CBP aims to issue most classification rulings within about 30 calendar days through its National Commodity Specialist Division in New York. More complex requests routed to Headquarters generally take around 90 days.
No. Rulings cover prospective transactions only. If the merchandise has already arrived, been entered, or become the subject of a protest or court case, it is ineligible for an advance determination.
No. A ruling applies only to the party and goods described in the original request. A published ruling on a near-identical product is persuasive guidance and often answers the question, but it is not binding on your entries.