Robert D. Stelter appeals a superior court summary judgment order affirming a decision by the Department of Labor and Industries denying his claim for workers’ compensation benefits. He contends there is at least a factual question regarding whether his employer was engaged exclusively in interstate commerce and, thus, *479was not properly exempted from mandatory coverage under the Industrial Insurance Act. We agree and reverse.
Mr. Stelter began working as a truck driver for Drotzmann, Inc., in 1996. He was unaware that a second corporation, Drotzmann Intrastate Trucking, operated from the same business offices in Yakima. Drotzmann, Inc., has a permit from the Interstate Commerce Commission and has no authority to operate intrastate trips. Drotzmann Intrastate Trucking operates in Washington under authority of the Washington Utilities and Transportation Commission.
Drotzmann, Inc., leases its trucks and drivers to Drotzmann Intrastate Trucking for intrastate trips within Washington. Trucks used in both businesses bear the words “Drotzmann", Inc.” In the course of his employment, Mr. Stelter drove both interstate and intrastate trips, but he never drove trips that mixed interstate and intrastate loads. He believed he was working for Drotzmann, Inc., even when he was making intrastate trips. He took his instructions from a Drotzmann, Inc., supervisor and was paid by checks listing his employer as Drotzmann, Inc.
Drotzmann, Inc., and Drotzmann Intrastate Trucking have different owners, but both are owned by members of the same family.1 The companies keep separate corporate books and file separate tax returns. Although they do not commingle revenue or expenses, they share payroll arid other documents for administrative purposes. A single controller provides accounting services for both companies. Drotzmann Intrastate Trucking pays industrial insurance premiums for hours worked on its intrastate trips; Drotzmann, Inc., does not pay premiums for hours worked on its interstate trips.
Mr. Stelter was injured in 1997 while working for Drotzmann, Inc. He filed a claim for workers’ compensation benefits with the Department of Labor and Industries. The *480Department rejected the claim because it concluded Mr. Stelter was excluded from mandatory coverage and his employer had not elected to provide coverage. Mr. Stelter appealed to the Board of Industrial Insurance Appeals, which affirmed the Department’s order, with one member dissenting.
Mr. Stelter then appealed to the superior court, and Drotzmann, Inc., moved for summary judgment. The court granted the motion, holding Drotzmann, Inc., was exclusively engaged in interstate commerce and thus was excluded from mandatory workers’ compensation coverage. Mr. Stelter now appeals this order.
We recently articulated the appropriate standard of review:
Judicial appeal of a decision by the Board of Industrial Insurance Appeals is de novo, but is based solely on the evidence and testimony presented to the Board. RCW 51.52.115; Johnson v. Weyerhaeuser Co., 134 Wn.2d 795, 800 n.4, 953 P.2d 800 (1998); Department of Labor & Indus. v. Fankhauser, 121 Wn.2d 304, 308, 849 P.2d 1209 (1993); McClelland v. ITT Rayonier, Inc., 65 Wn. App. 386, 828 P.2d 1138 (1992). The Board’s findings and conclusions are considered prima facie correct, although “[t]he superior court may substitute its own findings and decision for the Board’s if it finds, ‘from a fair preponderance of credible evidence,’ that the Board’s findings and decisions are incorrect.” McClelland, 65 Wn. App. at 390 (quoting Weatherspoon v. Department of Labor & Indus., 55 Wn. App. 439, 440, 777 P.2d 1084, review denied, 113 Wn.2d 1030 (1989)). Either party is entitled to a jury trial to resolve factual disputes. RCW 51.52.115. A superior court’s review is subject to the civil appeal rules, including those for summary judgment. RCW 51.52.140; McClelland, 65 Wn. App. at 390.
On review of a summary judgment order, an appellate court’s inquiry is the same as the superior court’s. Our Lady of Lourdes Hosp. v. Franklin County, 120 Wn.2d 439, 451, 842 P.2d 956 (1993); see Fankhauser, 121 Wn.2d at 308. Summary judgment is appropriate “if the pleadings, depositions, answers to interrogatories, and admissions on file, together with the *481affidavits, if any, show that there is no genuine issue as to any material fact and that the moving party is entitled to a judgment as a matter of law.” CR 56(c). The burden is on the party seeking summary judgment to establish its right to judgment as a matter of law, and the court must consider facts and reasonable inferences from the facts in favor of the nonmoving party. Our Lady of Lourdes, 120 Wn.2d at 452.
Romo v. Dep’t of Labor & Indus., 92 Wn. App. 348, 353-54, 962 P.2d 844 (1998). “A ‘material fact’ is a fact upon which the outcome of the litigation depends, in whole or in part.” Morris v. McNicol, 83 Wn.2d 491, 494, 519 P.2d 7 (1974).
The Industrial Insurance Act must be “liberally construed for the purpose of reducing to a minimum the suffering and economic loss arising from injuries and/or death occurring in the course of employment.” RCW 51.12.010; see Ochoa v. Dep’t of Labor & Indus., 143 Wn.2d 422, 425-26, 20 P.3d 939 (2001). RCW 51.12.095(1) generally requires common carriers that are engaged exclusively in interstate commerce to provide workers’ compensation coverage. However, the statute includes the following proviso:
[A]ny common or contract carrier or its successor that formerly had coverage under this title and by virtue of being exclusively engaged in interstate or foreign commerce, or any combination thereof, withdrew its acceptance of liability under this title by filing written notice with the director of the withdrawal of its acceptance prior to January 2, 1987, shall be governed by the provisions of this section that were in effect as of that date.
RCW 51.12.095(1). Before this proviso was added in 1989, the statute provided:
Common or contract carriers domiciled in this' state that are engaged exclusively in interstate or foreign commerce, or any combination thereof, may elect coverage under this title in the manner provided by RCW 51.12.110 for their employees.
Former RCW 51.12.095(1) (1983) (Laws of 1983, ch. 170, § 2).
It is undisputed that Drotzmann, Inc., provided notice, as required by the current statute’s proviso, that it was *482withdrawing its acceptance of liability. Drotzmann, Inc., thus was governed by the prior version of the statute, which permitted but did not require it to provide workers’ compensation coverage.
Mr. Stelter contends, however, that Drotzmann, Inc., was not entitled to the exemption from coverage because it was not exclusively engaged in interstate commerce. He reasons that because he did not even know of the existence of Drotzmann Intrastate Trucking, he could not have had an employment relationship with that business. He further reasons that because he was employed only by Drotzmann, Inc., (even when he was driving on intrastate trips), Drotzmann, Inc., was engaged in interstate and intrastate commerce.
For an employment relationship to exist for worker’s compensation purposes, there must be a mutual agreement between the employer and the employee. Fisher v. City of Seattle, 62 Wn.2d 800, 804-06, 384 P.2d 852 (1963). In Fisher, Standard Stations, Inc. (Standard Stations) hired the plaintiff as a gas station attendant. Standard Stations, a corporation wholly owned by Standard Oil Company of California (Standard Oil), entered into an agreement with Standard Oil under which Standard Stations would operate Standard Oil’s service stations and Standard Oil would provide administrative services. Id. at 801-02. A second wholly owned corporation, Western Operations, Inc. (Western), later took over Standard Oil’s responsibilities under the agreement. Id. at 802. In the plaintiff’s suit for damages from an explosion at the service station, Standard Oil and Western contended they were exempt under the Industrial Insurance Act because they were employers. Id. at 803.
The Supreme Court disagreed, noting that in the “lent servant” situation, “it is a well-established rule that an employee cannot have an employer thrust upon him against his will or without his knowledge.” Id. at 805 (citing Barney v. Anderson, 116 Wash. 352, 199 P. 452 (1921); 3 William R. Schneider, Schneider’s Workmen’s Compensation Text § 782 (perm. ed. (1943))). Under the workers’ compensation law, *483the court held, an employment relationship cannot exist without the consent of the worker. Fisher, 62 Wn.2d at 806. The court thus reversed a lower court’s dismissal on summary judgment and held that because the plaintiff was not aware of his employer’s relationship with Standard Oil or Western, those corporations could not have been his employers. Id. at 807-08.
Similarly here, Mr. Stelter has presented evidence that he was not aware even of the existence of Drotzmann Intrastate Trucking and thus could not have been its employee. Although Drotzmann, Inc., has presented evidence that it routinely informs its new drivers that they will be working for Drotzmann Intrastate Trucking when hauling intrastate loads, this is a factual question that may not be resolved on summary judgment. This case thus must be returned to the superior court to determine whether Mr. Stelter in fact consented to his employment with Drotzmann Intrastate Trucking.
The superior court’s order on summary judgment is reversed.
Kurtz, C.J., concurs.
Joseph and Dorothy Drotzmann own Drotzmann, Inc. Their sons, Arnold, Rodney, and Greg Drotzmann own Drotzmann Intrastate Trucking. Greg Drotzmann also is president of Drotzmann, Inc.