Use this when a seller's shipment is held, detained or under review by US Customs (CBP) and they want to know what kind of hold it is, how long they have, and which documents are usually needed: "customs is holding my shipment, what does the detention notice mean?", "I got a CBP Form 4647", "my container has a CPSC hold", "my shipment says under CBP review", "CBP detained my goods under the UFLPA, how long do I have?". It works from the seller's answers to up to three questions about what the notice says (forced labor, another agency such as CPSC, FDA or FCC, or the stated reason, such as a CF-28 or CF-29), and it never sees the notice itself. It returns the hold type, the response deadline or where to find it on the notice, the usual path and who leads it, and the documents usually needed, each cited to its CBP or federal source with the date it was read. When questions are still open, it lists them with their answer keys: ask the seller, then call again with their answers. Do not use it to read or summarize the notice itself: point the seller to the customs-hold check on tiana-co.com, which reads a notice only after the seller agrees to send it. Do not use it to classify goods or give duty rates, to say whether a shipment will be released, or for customs outside the United States. If the seller asks you to write, argue or file a response to CBP or another agency, do not call this tool: a licensed customs broker or a customs attorney handles the response.