Title 19, Customs DutiesRelease 119-110

§1644a Ports of Entry

Title 19 › CHAPTER 4 — TARIFF ACT OF 1930 › SUBTITLE III — ADMINISTRATIVE PROVISIONS › Part VI — Miscellaneous Provisions › § 1644a

Last updated Sep 22, 2026|Official source

Summary

The Secretary of the Treasury can name which U.S. airports are official ports of entry for civil aircraft coming from other countries. The Secretary can assign Customs officers to those ports, give other federal officers Customs duties if their bosses agree, and make rules that apply Customs, public health, immigration, and some ship-entry rules to planes when needed. If someone breaks those rules or related health or Customs laws that now apply to aircraft, they can be fined $5,000 for each violation, and the plane can be seized or forfeited. The Secretary (and for some immigration rules, the Attorney General) can reduce or cancel those fines. If a controlled drug covered by section 1584 is found on or unloaded from the plane, the owner or person in command must pay the penalties in section 1584 unless they prove they did not know and used the highest care to prevent it. If the owner, operator, or commander breaks the rule, the plane can be held by a lien. The Secretary of Agriculture can make plant and animal quarantine laws apply to civil air travel, and violators face the penalties those laws call for. Decisions to reduce or cancel penalties are final, and the Secretary must tell the Attorney General if a forfeiture court case is happening during a penalty review. A plane with a lien can be quickly seized, reported to the Attorney General, and either held until legal action is taken or released if the fine is paid, a court seizes it, the Attorney General declines action, or a bond is posted. Penalties can be collected by suing the person, suing the plane, or both, using admiralty-style rules; a jury may be requested if the amount in dispute is more than $20. Agencies may be given money to rent space at a public airport (see 49 U.S.C. 47102) for inspections or related work, but they must consult the Secretary of Transportation first. Definitions used follow 49 U.S.C. 40102(a).

Full Legal Text

Title 19, §1644a

Customs Duties, Source: USLM XML via OLRC

(a)Definitions
The definitions in section 40102(a) of title 49 apply to this section.
(b)Secretary of the Treasury
(1)The Secretary of the Treasury may—
(A)designate ports of entry in the United States for civil aircraft arriving in the United States from a place outside the United States and property transported on that aircraft;
(B)detail to ports of entry officers and employees of the United States Customs Service the Secretary considers necessary;
(C)give an officer or employee of the United States Government stationed at a port of entry (with the consent of the head of the department, agency, or instrumentality of the Government with jurisdiction over the officer or employee) duties and powers of officers or employees of the Customs Service;
(D)by regulation, apply to civil air navigation the laws and regulations on carrying out the customs laws, to the extent and under conditions the Secretary considers necessary; and
(E)by regulation, apply to civil aircraft the laws and regulations on entry and clearance of vessels, to the extent and under conditions the Secretary considers necessary.
(2)A person violating a customs regulation prescribed under paragraph (1)(A)–(D) of this subsection or a public health or customs law or regulation made applicable to aircraft by a regulation under paragraph (1)(A)–(D) is liable to the Government for a civil penalty of $5,000 for each violation. An aircraft involved in the violation may be seized and forfeited under the customs laws. The Secretary of the Treasury may remit or mitigate a penalty and forfeiture under this paragraph.
(3)A person violating a regulation made applicable under paragraph (1)(E) of this subsection or an immigration regulation prescribed under paragraph (1)(E) is liable to the Government for a civil penalty of $5,000 for each violation. The Secretary of the Treasury or the Attorney General may remit or mitigate a penalty under this paragraph.
(4)In addition to any other penalty, when a controlled substance described in section 1584 of this title is found on, or to have been unloaded from, an aircraft to which this subsection applies, the owner of, or individual commanding, the aircraft is liable to the Government for the penalties provided in section 1584 of this title for each violation unless the owner or individual, by a preponderance of the evidence, demonstrates that the owner or individual did not know, and by exercising the highest degree of care and diligence, could not have known, that a controlled substance was on the aircraft.
(5)If a violation under this subsection is by the owner or operator of, or individual commanding, the aircraft, the aircraft is subject to a lien for the penalty.
(c)Secretary of Agriculture
(1)The Secretary of Agriculture by regulation may apply laws and regulations on animal and plant quarantine (including laws and regulations on importing, exporting, transporting, and quarantining animals, plants, animal and plant products, insects, bacterial and fungus cultures, viruses, and serums) to civil air navigation to the extent and under conditions the Secretary considers necessary.
(2)A person violating a law or regulation made applicable under paragraph (1) of this subsection is liable for the penalties provided under that law or regulation.
(d)Remission and mitigation of penalties
A decision to remit or mitigate a civil penalty under this section is final. When libel proceedings are pending during a proceeding to remit or mitigate a penalty, the appropriate Secretary shall notify the Attorney General of the remission or mitigation proceeding.
(e)Summary seizure of aircraft
(1)An aircraft subject to a lien under this section may be seized summarily by and placed in the custody of a person authorized by regulations of the appropriate Secretary or the Attorney General. A report of the case shall be sent to the Attorney General. The Attorney General shall bring promptly a civil action in rem to enforce the lien or notify the appropriate Secretary that the action will not be brought.
(2)An aircraft seized under this section shall be released from custody when—
(A)the civil penalty or amount not remitted or mitigated is paid;
(B)the aircraft is seized under process of a court in a civil action in rem to enforce the lien;
(C)the Attorney General gives notice that a civil action will not be brought under paragraph (1) of this subsection; or
(D)a bond is deposited with the appropriate Secretary or the Attorney General in an amount and with a surety the appropriate Secretary or the Attorney General prescribes, conditioned on payment of the penalty or amount not remitted or mitigated.
(f)Collection of civil penalties
A civil penalty under this section may be collected by bringing a civil action against the person subject to the penalty, a civil action in rem against an aircraft subject to a lien for a penalty, or both. The action shall conform as nearly as practicable to a civil action in admiralty, regardless of the place an aircraft in a civil action in rem is seized. However, a party may demand a trial by jury of an issue of fact if the value of the matter in controversy is more than $20. An issue of fact tried by jury may be reexamined only under common law rules.
(g)Authorization of appropriations
Necessary amounts may be appropriated to allow the head of a department, agency, or instrumentality of the Government to acquire space at a public airport (as defined in section 47102 of title 49) when the head decides the space is necessary to carry out inspections, clearance, collection of taxes or duties, or a similar responsibility of the head, related to transporting passengers or property in air commerce. The head must consult with the Secretary of Transportation before making a decision on space.

Legislative History

Notes & Related Subsidiaries

Editorial Notes

Codification Section was not enacted as part of the Tariff Act of 1930 which comprises this chapter. Section is based on section 1474 and 1509(b)–(e) of former Title 49, Transportation, which were repealed and restated as this section by Pub. L. 103–272, §§ 2, 7(b), July 5, 1994, 108 Stat. 1358, 1379.

Statutory Notes and Related Subsidiaries

Transfer of Functions

For

Transfer of Functions

, personnel, assets, and liabilities of the United States Customs Service of the Department of the Treasury, including functions of the Secretary of the Treasury relating thereto, to the Secretary of Homeland Security, and for treatment of related references, see section 203(1), 551(d), 552(d), and 557 of Title 6, Domestic Security, and the Department of Homeland Security Reorganization Plan of November 25, 2002, as modified, set out as a note under section 542 of Title 6. For establishment of U.S. Customs and Border Protection in the Department of Homeland Security, treated as if included in Pub. L. 107–296 as of Nov. 25, 2002, see section 211 of Title 6, as amended generally by Pub. L. 114–125, and section 802(b) of Pub. L. 114–125, set out as a note under section 211 of Title 6.

Reference

Citations & Metadata

Citation

19 U.S.C. § 1644a

Title 19, Customs Duties

Last Updated

Sep 22, 2026

Release point: 119-110