15 U.S.C. § 3503
Section 3503 · Antitrust law defined
Amended 1 time on record
Applied in 1 court decisions — leading case State of Okla. v. United States (2023)
Most recently applied in State of Okla. v. United States (March 2023)
How often courts cite this section
Court decisions citing this, by year.Markers show enactment, consequential amendments, and circuit splits over this section — watch for a citation surge after a change or a disagreement. The dip in the last several years is a data-coverage gap, not a real trend — our corpus holds fewer opinions from the most recent years, so recent citations are undercounted.
As used in this chapter, the term “antitrust law” means the Sherman Act (15 U.S.C. 1 et seq.), the Clayton Act (15 U.S.C. 12 et seq.), and the Federal Trade Commission Act (15 U.S.C. 41 et seq.).
Editorial notes U.S. Code · Office of the Law Revision Counsel
References in Text
The Sherman Act (15 U.S.C. 1 et seq.), referred to in text, is act July 2, 1890, ch. 647, 26 Stat. 209, as amended, which is classified to sections 1 to 7 of this title. For complete classification of this Act to the Code, see Short Title note set out under section 1 of this title and Tables.
The Clayton Act (15 U.S.C. 12 et. seq.), referred to in text, is act Oct. 15, 1914, ch. 323, 38 Stat. 730, as amended, which is classified generally to sections 12, 13, 14 to 19, 20, 21, and 22 to 27 of this title, and sections 52 and 53 of Title 29, Labor. For further details and complete classification of this Act to the Code, see References in Text note set out under section 12 of this title and Tables.
The Federal Trade Commission Act (15 U.S.C. 41 et seq.), referred to in text, is act Sept. 26, 1914, ch. 311, 38 Stat. 717, as amended, which is classified generally to subchapter I (§41 et seq.) of chapter 2 of this title. For complete classification of this Act to the Code, see section 58 of this title and Tables.