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October 2025, question 56

Entry / Entry Summary · Carriers, vessels, aircraft and manifests

Jane Doe wants to import liquid chemicals in stainless steel tanks that are capable of being used repeatedly. The tanks are emptied of the liquid chemicals at importation and exported empty in order to be refilled. Ms. Doe does not want to make entry or pay duty for these tanks, which will be exported and reimported continuously. Ms. Doe is considering having these tanks designated as Instruments of International Traffic (IITs). Which of the following statements concerning IITs is TRUE?

  1. A steel tank may be designated as an IIT that is exempt from ordinary duties, but will remain subject to antidumping and countervailing duties.
  2. A steel tank that is designated as an IIT must be exported from the United States within 365 days of admission.
  3. A steel tank may only be designated as an IIT if Ms. Doe obtains a basic custodial bond.
  4. A steel tank may be designated as an IIT that is exempt from entry, but will remain subject to vessel reporting requirements.
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CBP's answer: B and D. B: A steel tank that is designated as an IIT must be exported from the United States within 365 days of admission.D: A steel tank may be designated as an IIT that is exempt from entry, but will remain subject to vessel reporting requirements.

CBP keyed two answers, B and D. Section 10.41a(g) deems a container designated as an instrument of international traffic to remain in international traffic only if it exits the U.S. within 365 days of admission, so B is right. Section 10.41a(a)(1) lets designated instruments be released without entry or duty, while the vessel carrying them still has to report arrival under 4.2(a) because it carries foreign merchandise, so D is right. A (antidumping duties) is not stated in the section, and C is wrong because the bond is a Customs Form 301 bond under 113.66.

is deemed to remain in international traffic provided that the container exits the United States within 365 days of the date on which it was admitted under this section 19 CFR 10.41a(g)(1)
Such instruments may be released without entry or the payment of duty, subject to the provisions of this section. 19 CFR 10.41a(a)(1)
the master of the vessel must immediately report that arrival to the nearest CBP facility 19 CFR 4.2(a)

Search for: instruments of international traffic

CBP's key cites: 19 CFR 10.41a; 19 CFR 4.2(a); 19 CFR 4.0(a)

Question and key from CBP's October 2025 exam and answer key. The walk-through is ours; quotes are from the pinned editions in the reference viewer (HTSUS 2026 Basic, 19 CFR 2025 edition).