Scope & Special Instructions
Customs Broker Letter FAQs
What is a customs broker letter of authorization? +
A customs broker letter of authorization is a formal document from an importer authorizing a licensed customs broker to act on their behalf for customs clearance under 19 USC 1641. It typically supplements a Customs Power of Attorney (CBP Form 5291) and specifies the scope of the broker's authority, including which shipments or entry types are covered.
Do I need a Power of Attorney for a customs broker? +
Yes. CBP requires a valid Power of Attorney (POA) — CBP Form 5291 — before a licensed customs broker can file entries or perform other customs transactions on your behalf. The POA can be limited (covering specific shipments) or unlimited (covering all shipments). A letter of authorization is an additional communication that often accompanies the formal POA.
What should be included in entry instructions to a customs broker? +
Entry instructions should include: the importer of record information, HTS classification guidance, special permits or licenses required, duty payment instructions, ISF filing requirements, continuous bond information, and any importer-specific compliance requirements (e.g., AD/CVD deposits, special programs like GSP or FTA claims).
Can I change customs brokers mid-shipment? +
Yes, importers can change customs brokers at any time. A formal letter revoking the old broker's POA and authorizing the new broker should be sent to both parties and to CBP. If a shipment is already in transit, coordination between both brokers is needed to ensure smooth transfer of entry filing responsibilities.
What is the difference between a broker POA and a letter of authorization? +
A CBP Form 5291 (Power of Attorney) is the legally required CBP form that grants the broker formal legal authority to file with CBP. A letter of authorization is a business letter that accompanies or supplements the POA, providing specific instructions, scope limitations, and contact preferences. Both documents serve different functions — the POA satisfies CBP requirements while the authorization letter communicates your business preferences to the broker.