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49 USC § 47529 - Nonaddition rule 

---
identifier: "/us/usc/t49/s47529"
source: "usc"
legal_status: "official_legal_evidence"
title: "49 USC § 47529 - Nonaddition rule"
title_number: 49
title_name: "TRANSPORTATION"
section_number: "47529"
section_name: "Nonaddition rule"
chapter_number: 475
chapter_name: "NOISE"
subchapter_number: "II"
subchapter_name: "NATIONAL AVIATION NOISE POLICY"
part_number: "B"
part_name: "AIRPORT DEVELOPMENT AND NOISE"
positive_law: true
currency: "119-84"
last_updated: "2026-04-17"
format_version: "1.1.0"
generator: "[email protected]"
source_credit: "(Pub. L. 103–272, § 1(e), July 5, 1994, 108 Stat. 1292.)"
---

# § 47529. Nonaddition rule

**(a)** **General Limitations.—** Except as provided in subsection (b) of this section and section 47530 of this title, a person may operate a civil subsonic turbojet aircraft with a maximum weight of more than 75,000 pounds that is imported into the United States after November 4, 1990, only if the aircraft—

**(1)** complies with the stage 3 noise levels; or

**(2)** was purchased by the person importing the aircraft into the United States under a legally binding contract made before November 5, 1990.

**(b)** **Exemptions.—** The Secretary of Transportation may provide an exemption from subsection (a) of this section to permit a person to obtain modifications to an aircraft to meet the stage 3 noise levels.

**(c)** **Aircraft Deemed Not Imported.—** In this section, an aircraft is deemed not to have been imported into the United States if the aircraft—

**(1)** was owned on November 5, 1990, by—

**(A)** a corporation, trust, or partnership organized under the laws of the United States or a State (including the District of Columbia);

**(B)** an individual who is a citizen of the United States; or

**(C)** an entity that is owned or controlled by a corporation, trust, partnership, or individual described in subclause (A) or (B) of this clause; and

**(2)** enters the United States not later than 6 months after the expiration of a lease agreement (including any extension) between an owner described in clause (1) of this subsection and a foreign carrier.

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**Source Credit**: (Pub. L. 103–272, § 1(e), July 5, 1994, 108 Stat. 1292.)

| RevisedSection | Source (U.S. Code) | Source (Statutes at Large) |
| --- | --- | --- |
| 47529 | 49 App.:2158. | Nov. 5, 1990, Pub. L. 101–508, § 9309, 104 Stat. 1388–384; Oct. 31, 1992, Pub. L. 102–581, § 136(b), 106 Stat. 4889. |