This appeal concerns the exemption from sales tax for commercial vessels primarily engaged in interstate commerce, § 77.54(13), *540 Stats. 1 La Crosse Queen, Inc. appeals from a judgment affirming the determination of the Wisconsin Tax Appeals Commission that payments it received for the lease of an excursion vessel, the La Crosse Queen IV, were not exempt because the vessel was not primarily engaged in interstate commerce. We conclude that the vessel was engaged in interstate commerce during the years in question, but we are unable to decide on this record whether it was "primarily" engaged in interstate commerce. We therefore reverse the judgment with directions to the trial court to remand to the commission for this determination.
BACKGROUND
During the years 1989 through 1991, La Crosse Queen, Inc. was the owner of an excursion vessel named the La Crosse Queen IV and leased it to Riverboats America, Inc. The vessel carries passengers on sightseeing and dinner cruises and operates exclusively on the Mississippi River. The western boundary of the State of Wisconsin is the center of the main channel of the Mississippi River. 2 All passengers embark and disembark at La Crosse, Wisconsin. Approximately seventy-five percent of the passengers carried by the vessel are from states other than Wisconsin.
*541 On the one and one-half hour cruise, the vessel goes upstream, crosses over the Wisconsin boundary into Minnesota territorial waters, travels to the lock and dam at Dresbach, Minnesota, then turns around and returns to La Crosse. There is a longer four-hour cruise that serves a meal and includes this same route. On this cruise and on charter cruises, the vessel typically "locks through" the lock at Dresbach before it turns around. There is also a two-hour dinner cruise that goes south on the river and then turns around to return to La Crosse. A guide provides information about the river and its history during the cruises. No passengers disembark at any point during the cruises.
The vessel operates under Interstate Commerce Commission (ICC) authority number WC-1172; until the time of deregulation, the vessel was required to file tariff reports with the ICC. Because the Mississippi River is considered an interstate waterway, the vessel must be, and is, certified by the United States Coast Guard, and must report annually to the Army Corps of Engineers.
The owners of La Crosse Queen, Inc. purchased the business from Roy Franz in 1975, although the vessel they purchased then was not the La Crosse Queen IV. Franz challenged the imposition of a sales tax on the ticket sales for the cruises on the ground, among others, that it was an unconstitutional burden on interstate commerce. In
Roy A. Franz, d/b/a The Big Indian Boat Lines v. DOR,
No. 159-122 (Dane County Cir. Ct. July 30, 1979), the Dane County Circuit Court determined that the tax was valid and, in particular, determined that no interstate commerce was involved, relying on
Mayor of Vicksburg v. Streckfus Steamers,
The Wisconsin Department of Revenue issued an assessment of sales tax on the gross receipts from the lease payments for the years 1989 through 1991. The taxpayer appealed to the Wisconsin Tax Appeals Commission. The commission determined that the vessel was not primarily engaged interstate commerce because the rides were purely recreational and not an essential part of the passengers' interstate travel. The commission relied on the
Franz
decision, citing approvingly from
Mayor of Vicksburg,
and on the "integral step in interstate movement" criterion from
United States v. Yellow Cab Co.,
DISCUSSION
We review the decision of the commission, not the trial court.
See Port Affiliates, Inc. v. DOR,
*543
We conclude that the proper degree of deference in this circumstance is "due weight," rather than "great weight."
See Wrigley,
Transportation between points within a state over a route in another state is interstate commerce.
Central Greyhound Lines, Inc. v. Mealey,
*545
Central Greyhound Lines
and
Cornell
were relied on by the Missouri Supreme Court in analyzing whether an excursion boat with operations similar to those of the La Crosse Queen IV was engaged in interstate commerce in
City of St. Louis v. Streckfus,
The transportation of passengers in this case by boat on a boundary river in a continuous nonstop journey from and to the same point in Missouri during which the boat crosses the boundary line into and traverses waters of Illinois is interstate commerce. Cornell Steamboat Co. v. United States, supra; Central Greyhound Lines, Inc. v. Mealey, supra.
Streckfus,
The commission's decision does not discuss the definition of interstate commerce established in
Cornell.
Instead, it relies on
Mayor of Vicksburg,
which
*546
was decided before
Cornell. Mayor of Vicksburg
relied on United States Supreme Court cases decided prior to
Cornell
and
Central Greyhound Lines
in concluding that an excursion vessel leaving from and returning to Vicksburg, Mississippi, and crossing over to the Louisiana side of the river en route, was not engaged in interstate commerce.
Mayor of Vicksburg,
It would be an extravagant consequence to draw from [existing case law] that the contract was within the Sherman act because the boats referred to might sail over soil belonging to Kentucky in passing between two Ohio points.
Cincinnati, P.B.S. & P. Packet Co.,
The quoted language is dicta. Cincinnati, P.B.S. & P. Packet Co. concerned the question of whether a noncompete clause in a contract for the sale of vessels violated the Sherman Act. The court decided that, assuming the contract did affect interstate commerce, this was not the dominant purpose of the contract. More importantly, what struck the Court as "an extravagant consequence" to draw from existing case law in 1906 was the holding in Cornell thirty-eight years later, at least with respect to the Interstate Commerce Act.
The commission also relied on the definition of interstate commerce utilized in
Yellow Cab Co.
There the Court held, in the context of a Sherman Anti-Trust Act claim, that local taxicabs conveying interstate train passengers to and from the train station and their
*547
homes were not engaged in interstate commerce because their service was not an integral part of the interstate transportation of the passengers.
Yellow Cab Co.,
Having given due weight to the commission's interpretation of "interstate commerce," we conclude *548 that its interpretation is erroneous. Applying the definition of "interstate commerce" in Cornell, we conclude that the La Crosse Queen IV was engaged in interstate commerce when it crossed into Minnesota territorial waters on its excursion routes. 5 The next question is whether it was "primarily" engaged in interstate commerce. Because of the commission's interpretation of the phrase "interstate commerce," it did not make this determination. The trial court must therefore remand to the commission for this purpose.
By the Court. — Judgment reversed and cause remanded with directions.
Notes
Section 77.54(13), Stats., provides an exemption from general sales and use taxes as follows:
The gross receipts from the sales of and the storage, use or other consumption in this state of commercial vessels and barges of 50-ton burden or over primarily engaged in interstate or foreign commerce or commercial fishing, and the accessories, attachments, parts and fuel therefor.
See Wis. Const, art. II, § 1.
Article I, section 8, clause 3 of the United States Constitution gives Congress the power to "regulate commerce . . . among the several states." The Commerce Clause has been interpreted to prohibit certain state taxation on interstate commerce even when Congress has failed to legislate on the subject.
Oklahoma Tax Comm'n v. Jefferson Lines, Inc.,
514 U.S. —, —,
We emphasize that we are not confronted in this case with the question of the constitutionality of a sales tax on the gross receipts from the lease of the vessel. We are confronted only with a question of statutory construction — whether the vessel is primarily engaged in interstate commerce under § 77.54(13), STATS. However, because the statute does not define interstate commerce, we look to cases defining this term in the context of the Commerce Clause and Congress's authority derived from the Commerce Clause.
The commission correctly applied the Yellow Cab Co. test in Washington Island Ferry Line, Inc. v. DOR, WTAC Nos. 91-S-126, 91-S-385 (March 16, 1993), aff'd, No. 93-CV-1442 (Dane County Cir. Ct. Dec. 4, 1993), because the Washington Island Ferry Line operated wholly within the state, carrying goods and passengers that originated from or were destined for points outside the state.
There is no suggestion that the crossing into Minnesota territorial waters was for the purpose of avoiding taxation or regulation.
Compare Eichholz v. Public Serv. Comm'n,
