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Ott v. Mississippi Valley Barge Line Co.

336 U.S. 169 · Decided February 7, 1949 · Supreme Court of the United States

Record summary. This page is generated from the Supreme Court Database’s coded data about the case. It describes who decided what, not the Court’s reasoning. Read the opinion itself before relying on it. Not legal advice.

At a glance

Ott v. Mississippi Valley Barge Line Co. was decided on February 7, 1949 by a vote of 8–1. The Court reversed the lower court's decision. Justice William O. Douglas wrote the opinion of the Court. SCDB classifies its main issue as “State or local government tax” in the Economic Activity area. SCDB codes this decision as formally altering one or more of the Court's own precedents.

Read the opinion

Case details

Citations
336 U.S. 169 · 69 S. Ct. 432 · 93 L. Ed. 2d 585 · 1949 U.S. LEXIS 2971
Docket number
244
Decided
February 7, 1949
Argued
January 5, 1949
Court era
Vinson Court
Decision type
Opinion of the Court (orally argued)
Disposition
Reversed
Outcome for petitioner
The petitioning party received a favorable disposition
Vote
8–1
Majority opinion
William O. Douglas
Opinion assigned by
Fred M. Vinson
How the case arrived
Appeal
Legal provision
Article I, Section 8, Paragraph 3 (interstate commerce clause)
Type of law
Constitution
Altered precedent
Yes — formally altered the Court's precedent
Decision direction (SCDB)
Liberal what this means

How the Justices voted

Full case caption

Ott, Commissioner of Public Finance, et al. v. Mississippi Valley Barge Line Co. et al.

SCDB identifiers: case 1948-035, docket 1948-035-01.

Other cases on “State or local government tax”

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Cases on the same legal provision: Article I, Section 8, Paragraph 3 (interstate commerce clause)

Same Term, same area (Economic Activity)

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Source: Supreme Court Database, 2026 Release 01 (data file dated September 8, 2026). Imported into CaseTrail November 5, 2026. Coverage: decisions from the 1946 through 2025 Terms. Methodology · Report an error