---
kind: "section"
citation: "49 U.S.C. § 47529"
title: "49"
title_heading: "Transportation"
number: "47529"
heading: "Nonaddition rule"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/49/47529"
units:
  - "Subtitle VII — Aviation Programs"
  - "Part B — Airport Development and Noise"
  - "Chapter 475 — Noise"
  - "Subchapter II — National Aviation Noise Policy"
---

# §47529. Nonaddition rule

- (a) **General Limitations.—** Except as provided in [subsection (b)](#b) of this section and [section 47530 of this title](/usc/49/47530.md), a person may operate a civil subsonic turbojet [aircraft](/usc/49/40102.md?p=a-6) with a maximum weight of more than 75,000 pounds that is imported into the [United States](/usc/49/40102.md?p=a-46) after November 4, 1990, only if the [aircraft](/usc/49/40102.md?p=a-6)—
  - (1) complies with the [stage 3 noise levels](/usc/49/47522.md?p=2); or
  - (2) was purchased by the person importing the [aircraft](/usc/49/40102.md?p=a-6) into the [United States](/usc/49/40102.md?p=a-46) under a legally binding contract made before November 5, 1990.
- (b) **Exemptions.—** The Secretary of Transportation may provide an exemption from [subsection (a)](#a) of this section to permit a person to obtain modifications to an [aircraft](/usc/49/40102.md?p=a-6) to meet the [stage 3 noise levels](/usc/49/47522.md?p=2).
- (c) **Aircraft Deemed Not Imported.—** In this section, an [aircraft](/usc/49/40102.md?p=a-6) is deemed not to have been imported into the [United States](/usc/49/40102.md?p=a-46) if the [aircraft](/usc/49/40102.md?p=a-6)—
  - (1) was owned on November 5, 1990, by—
    - (A) a corporation, trust, or partnership organized under the laws of the [United States](/usc/49/40102.md?p=a-46) or a State (including the District of Columbia);
    - (B) an individual who is a [citizen of the United States](/usc/49/40102.md?p=a-15); 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](/usc/49/40102.md?p=a-46) 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.

## Source credit

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

## Notes

| Historical and Revision Notes |  |  |
| --- | --- | --- |
| Revised<br>Section | 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. |