The case was argued on April 14, 1886 - April 15, 1886 and was decided on October 25, 1886, by vote of 6 to 3. Associate Justice Miller wrote for the Court with Associate Justices Field, Harlan, Woods, Matthews, and Blatchford concurring; Associate Justices Bradley and Gray, along with Chief Justice Waite, dissented. In
Wabash, "direct" burdens on interstate commerce were not permitted by the Export Tax Clause of the Constitution (Article I, Section 9); however, those "indirect" burdens were permitted under the Commerce Clause. This was a standard enacted in
Cooley v. Board of Wardens (1852). ==Effects of decision==