Talmadge, J.
— We decide in this case if David Ellis, a sound technician at the Seattle Center’s Key Arena who refused to disable a public address (PA) component of the Arena’s fire alarm system at his employer’s insistence, presented sufficient evidence to get to the jury on his claim of wrongful discharge based on public policy. We hold Ellis presented sufficient evidence to withstand a motion for summary judgment. We reverse the Court of Appeals’ decision on wrongful discharge based on public policy and remand that portion of Ellis’s case, along with his claim of retaliatory discharge pursuant to RCW 49.17.160, to the King County Superior Court for trial.
ISSUE
Has Ellis presented sufficient evidence to get to a jury on his claim of wrongful discharge as against public policy?
FACTS
David A. Ellis was employed as an intermittent sound technician, a casual employee, at the Seattle Center, an agency of the City of Seattle (City), beginning in September 1995. Ellis has a degree in electrical engineering from the University of Michigan. Before he began working at the Seattle Center, he had over 10 years of experience in the repair, installation, and maintenance of professional audio and video equipment.
After several years of refurbishing, the Key Arena opened at the Seattle Center in late 1995 as the home of the Seattle Supersonics basketball team. The controversy in this case [453]*453arises from the operation of the fire alarm system at the Key Arena. Upon a manual or automatic fire alarm being turned on, a three-minute delay period occurred. After that interlude, the alarm became audible. By design, this alarm shut off the Arena’s PA system. The purpose of shutting off the PA system was to allow the emergency fire microphones located in a separate room at the Arena to become active so emergency officials could give directions to patrons at Key Arena in the event of a fire or other emergency. Thus, Seattle Fire Department personnel could make any necessary crowd control announcements over the PA system without interference from those announcing a game or other activity at Key Arena. Ellis and other sound technicians were specifically told of this system feature by its manufacturer.
Upon the opening of Key Arena, problems ensued with the fire alarm system. The fire alarm system activated near the end of a Sonics basketball game on January 19, 1996, causing the PA system to go off the air, as designed. The sound technician on duty at the time, Matthew Abraham, averred the following:
Within seconds of the PA system being muted, Rob Martin, an official with the Sonics, and Jill Crary, the Events Services Representative (ESR) from Seattle Center, got on the radio and asked what was going on with the PA system and why there was no house sound. I explained to them that it was a function of the fire alarm system mode, and that it was a function of the fire alarm system that the house PA would be cut off, and control over the house PA would be shifted to the emergency fire microphones, for use only by Fire Department officials.
Jill Crary and Rob Martin then told me over the radio to restore the sound, and to do whatever needed to be done. I told them that they were asking me to alter a fire alarm system, and that this was a system approved by the Fire Department, and that it should not be altered without authorization. Crary asked me if I knew how to bypass the relay, and thus restore the house sound. I said yes, I did know how to do it. Rob Martin then got on the radio, and told me to bypass the relay and restore the sound. I said that I needed proper authorization to [454]*454do so. Martin then said, “I, Rob Martin, give you authorization to bypass the relay.” I then told Martin and Crary over the radio that I would try. I then went to the location where the bypass of the relay would have to be performed, but I did not, in fact, attempt to bypass the relay, because I was not sure that the situation was under control and that in fact, the fire alarm was false, and I did not want to interfere with the design of the fire alarm system and risk making the system not operate in the way that it was designed to.
I was also concerned because when Crary first called me on the radio to ask what was going on and why the sound had cut out, and when I explained that we were in a fire alarm mode, Crary said that she had no idea that the Key Arena was even in a fire alarm mode. Then, less than a minute later, Martin was telling me that he was authorizing me to bypass this relay to restore the house PA sound. This made me even more wary of performing the bypass, since both Crary and Martin had indicated by their comments that they did not understand how the fire alarm system worked at Key Arena. Neither Crary nor Martin ever indicated that the Fire Department had given them any authority to authorize me to alter the fire alarm system, and bypass the relay.
Clerk’s Papers at 332-33. Abraham reported this incident to Ellis the following night, so Ellis was aware of the controversy arising from orders to bypass the shunt relay.
Two days after this incident, Ellis and Abraham were both working at Key Arena preparing for another Sonics game. A couple of hours before the start of the game, a grease fire in the kitchen caused the fire alarm to go off, again resulting in a loss of the PA system. Jill Crary was again the ESR on duty and she instructed Abraham to bypass the fire relay until the alarm could be reset by fire officials. Abraham asked Crary for written authorization, which she provided by a hand-written note, whereupon Abraham bypassed the fire relay and reconnected it when Crary told him to do so.1
[455]*455Concerned about potential danger to the public from bypassing the emergency fire microphone relay, as well as the legality of tampering with a fire alarm system, Ellis and Abraham saw their supervisor, Rick Smargiassi, on the following day to express their concerns. Ellis asked Smargiassi to get management involved in the issue. Ellis saw Smargiassi again the very next day to ask if he had done anything about his concerns. Ellis averred:
Smargiassi told me that I had to do whatever I was told to by an event services representative (ESR), such as Jill Crary, even though I believed that tampering with a fire alarm system was illegal. I told Smargiassi that I would be happy to wire around the emergency fire microphone sound relay, as long as I had written authorization or a verbal request from a Fire Department official. I told Smargiassi that I thought that this request from ESRs, who have no training or authority in fire prevention, was not proper. I told Smargiassi that I wanted written clarification on who could, at what time, ask me to bypass the fire relay.
Clerk’s Papers at 365-66. Two days later, Smargiassi told Ellis he had conferred with John Cunningham, the Human Resources Manager for Seattle Center.
Smargiassi said that I needed to understand the “chain of authority” at Seattle Center. He said that if one of my superiors asked me to do something, I had to do it, without written authorization, whether or not I believed it to be legal.* [2] I asked Smargiassi if he had spoken to the Fire Department. He said [456]*456that he had not. Smargiassi told me that if I was not willing to do whatever I was asked without questioning it, he would have to accept my resignation. I told him that I would not resign, as I had done nothing wrong.
Clerk’s Papers at 366. Two days later, at a meeting Smargiassi had called, in the presence of two other intermittent sound technicians and an ESR named Kevin Moore, Ellis said, in response to a question from Smargiassi, he would not bypass the emergency fire microphone sound relay with only a verbal request from an ESR, and would require “either written authorization from someone above me at Seattle Center or a written or verbal request from someone at the Fire Department or someone at Seattle Center showing me that this request was a legal one.” Clerk’s Papers at 367. Matt Abraham also insisted on such authorization.
Ellis knew the Seattle Center had not received a blanket authorization from the Seattle Fire Department (SFD) to bypass the system because he overheard a voice mail message from Jill Crary on January 26 indicating the [457]*457Center had not received Fire Department approval for the bypass.
On February 2,1996, John Cunningham summoned Ellis to a fact-finding meeting at which Ellis repeated his insistence on obtaining what he considered proper authorization before bypassing the relay. Ellis and Cunningham give two very different accounts of this meeting. Cunningham claimed Ellis was insubordinate, while Ellis contended he reiterated his willingness to bypass the system upon verbal authorization from the Fire Department or written authorization from Seattle Center management. At the conclusion of the meeting, Cunningham suspended both Ellis and Abraham.
Three days later, Ellis and Abraham complained to the Washington State Department of Labor and Industries (L&I) about being asked to disable part of the fire alarm system. Subsequently, the Seattle Center suspended Abraham for 15 days for insubordination and shortly thereafter accepted his resignation in lieu of discharge. Ellis was discharged by Seattle Center director Virginia Anderson on February 22, 1996, for “gross insubordination.” She listed as causes for the termination Ellis’s failure to report for a scheduled shift on February 2 and his “stated refusal to comply with a directive from your supervisor.” Clerk’s Papers at 329. Anderson later admitted during her deposition that Ellis’s failure to report for his shift on February 2, standing alone, would probably not have resulted in his termination.
Ellis subsequently sued the City alleging two causes of action, wrongful termination based on public policy, relying on Gardner v. Loomis Armored Inc., 128 Wn.2d 931, 913 P.2d 377 (1996), and retaliatory discharge in violation of RCW 49.17.160(1) stemming from his L&I complaint. Clerk’s Papers at 6. RCW 49.17.160(1) is the whistleblower provision of the Washington Industrial Safety and Health Act (WISHA), and provides, in pertinent part: “No person shall discharge or in any manner discriminate against any employee because such employee has filed any complaint. . . related to this chapter . . . .” The trial court, [458]*458the Honorable William Downing, granted the City’s motion for summary judgment, dismissing Ellis’s entire case. The Court of Appeals thereafter affirmed the trial court’s dismissal of the wrongful discharge claim, but reversed the trial court’s dismissal of the retaliatory discharge claim. Ellis v. City of Seattle, No. 42334-7-1 (Wash. Ct. App. Apr. 19, 1999). We granted review of the decision on wrongful discharge. The City has not sought review of the decision on retaliatory discharge.
ANALYSIS
Because this case is here on an appeal from the Court of Appeals’ affirmance of summary judgment in favor of the City, the usual rules for reviewing summary judgments apply:
The standard of review on summary judgment is well settled. Review is de novo; the appellate court engages in the same inquiry as the trial court. Benjamin v. Washington State Bar Ass’n, 138 Wn.2d 506, 515, 980 P.2d 742 (1999). Summary judgment is appropriate if there is no genuine issue of material fact and the moving party is entitled to judgment as a matter of law. Clements v. Travelers Indem. Co., 121 Wn.2d 243, 249, 850 P.2d 1298 (1993); CR 56(c). All facts submitted and all reasonable inferences from them are to be considered in the light most favorable to the nonmoving party. Clements, 121 Wn.2d at 249. “The motion should be granted only if, from all the evidence, reasonable persons could reach but one conclusion.” Clements, 121 Wn.2d at 249 (citing Wilson v. Steinbach, 98 Wn.2d 434, 656 P.2d 1030 (1982)). However, bare assertions that a genuine material issue exists will not defeat a summary judgment motion in the absence of actual evidence. White v. State, 131 Wn.2d 1, 9, 929 P.2d 396 (1997).
Trimble v. Wash. State Univ., 140 Wn.2d 88, 92-93, 993 P.2d 259 (2000). Thus, even where there are facts in dispute, as here, we treat the facts and inferences from the facts in a light most favorable to Ellis.
The Court of Appeals analyzed the sole issue in this case under Gardner, 128 Wn.2d 931. Both parties agree [459]*459Gardner controls. Gardner sets forth a four-part test for analyzing wrongful discharge claims involving alleged violations of public policy:
(1) The plaintiffs must prove the existence of a clear public policy (the clarity element).
(2) The plaintiffs must prove that discouraging the conduct in which they engaged would jeopardize the public policy (the jeopardy element).
(3) The plaintiffs must prove that the public-policy-linked conduct caused the dismissal (the causation element).
(4) The defendant must not be able to offer an overriding justification for the dismissal (the absence of justification element).
Id. at 941 (citations omitted) (emphasis added). These elements are conjunctive. Id. at 942 (“Each of the public policies . . . must be scrutinized under this four-part test.”).
The Court of Appeals began its analysis with the clarity element. “In determining whether a clear mandate of public policy is violated, courts should inquire whether the employer’s conduct contravenes the letter or purpose of a constitutional, statutory, or regulatory provision or scheme.” Thompson v. St. Regis Paper Co., 102 Wn.2d 219, 232, 685 P.2d 1081 (1984). Ellis argued because the Seattle Fire Code requires certification from the Fire Department before an individual may service fire alarm systems, and because he had no such certification, the City’s prospective orders to him to bypass the system were illegal. The Seattle Fire Code states: “No person shall engage in the business of installing, servicing or maintaining fire and life safety systems and equipment unless they have obtained a certificate from the Chief or are specifically exempted from this section.” Seattle Fire Code, App. III-B, at 496c. Other fire code sections support Ellis’s contention.3 The Court of [460]*460Appeals agreed with Ellis, and held he met the clarity element of the four-part Gardner test. Ellis, slip op. at 6. The City has not asked us to review this holding.
The Court of Appeals next considered the second element, the jeopardy test: “The plaintiffs must prove that discouraging the conduct in which they engaged would jeopardize the public policy.” The purpose of the jeopardy element is to guarantee “an employer’s personnel management decisions will not be challenged unless a public policy is genuinely threatened.” Gardner, 128 Wn.2d at 941-42.
In considering this element of the Gardner analysis there has been some question as to whether a plaintiff must prove an actual violation of the public policy or must simply have an objectively reasonable belief the policy may be violated. Gardner did not address this issue. In two Court of Appeals cases, Bott v. Rockwell International, 80 Wn. App. 326, 908 P.2d 909 (1996), and Wlasiuk v. Whirlpool Corp., 81 Wn. App. 163, 914 P.2d 102, 932 P.2d 1266 (1996), different divisions of the Court of Appeals held actual violations of law, policy, or regulation were required in situations involving financial misconduct. Cf. Farnam v. CRISTA Ministries, 116 Wn.2d 659, 670-72, 807 P.2d 830 (1991) (employee knew employer’s conduct did not violate law; no cause of action).
In the retaliatory discharge context, Washington law has recognized a cause of action where an employee has an objectively reasonable belief an employer has violated the law. See, e.g., RCW 49.60.210 (retaliation for discrimination claim); Kahn v. Salerno, 90 Wn. App. 110, 130, 951 P.2d 321 (1998); Graves v. Dep’t of Game, 76 Wn. App. 705, 712, 887 P.2d 424 (1994). See also RCW 42.40.020(5) (state whistleblower statute—good faith belief improper govern[461]*461mental action); RCW 42.41.040(1) (local whistleblower statute). This standard has an analog in federal antidiscrimination law, Title VII of the Civil Rights Act of 1964, 42 U.S.C. § 2000e-3(a). A reasonable belief by the employee, rather than an actual unlawful employment practice, is all that need be proved to establish a retaliation claim. Moyo v. Gomez, 40 F.3d 982, 985 (9th Cir. 1994). In fact, to establish his retaliation claim under RCW 49.17.160(1), Ellis is not required to prove an actual WISHA violation. All he has to do is prove the City terminated him for making a WISHA complaint. See Wilson v. City of Monroe, 88 Wn. App. 113, 943 P.2d 1134 (1997).
In the context of concerns regarding public safety where imminent harm is present, we hold the jeopardy prong of the Gardner test may be established if an employee has an objectively reasonable belief the law may be violated in the absence of his or her action. This comports with our holding in Gardner emphasizing the need for swift action to protect human life. We do not, however, at this time disturb the holdings in Bott and Wlasiuk as to situations not involving immediate harm to life and limb.
The conduct in which Ellis engaged here was to refuse prospectively to bypass the disabling of the PA system without what he considered proper authorization or assurance. His motive was protection of the public. Obviously, disabling the fire alarm system so it did not work as it was designed to work would raise safety concerns in the mind of any conscientious individual, especially here, where Ellis knew the Seattle Fire Department specifically designed the disabling feature. Both Ellis and Abraham expressed their concern about safety and legality to their supervisors. Firing Ellis for raising questions about the legality of what he was told to do jeopardizes the public policy of following the fire code mandate to permit only certified persons to work on fire alarm systems.
The City responds by arguing Ellis was not asked to work on the fire alarm system, asserting he was asked only to work on the public address system, a task not requiring [462]*462certification. The City cites the declaration of Fire Marshal Jerald A. Birt:
Certification, under Section 103.3.5 of the Seattle Fire Code, can be one area of confusion. Although the Fire Code appears to limit work on fire alarm systems to certified persons, the definition of fire alarm system is subject to interpretation. For instance, ventilation fans are a critical part of the smoke control system at the Key Arena, but the persons who install such fans are not certified. Even more difficult to interpret are some of the hybrid systems in which the fire alarm system is incorporated with other traditional systems, such as public address (PA) systems. This is the type of system which exists at the Key Arena. In those instances, if the PA system were deemed to be a “fire alarm system,” in reality, no one would ever be able to work on any portion of the PA system under the Code.
Clerk’s Papers at 435-36. The Court of Appeals accepted the City’s explanation, concluding Ellis’s behavior was not necessary to enforce the public policy because the “SFD explained that such certification was not required since Ellis was ordered to work on the PA system, not the fire protection aspect associated with it.” Ellis, slip op. at 7.
We disagree with the Court of Appeals. The automatic disabling of the PA system was an integral part of the design of the fire alarm system at Key Arena. Bypassing the automatic disabling feature of the fire alarm system cannot fairly be characterized as working solely on the PA system. It is certainly not the equivalent of installing ceiling fans. Even more compelling, however, is the fire code’s definition of a fire alarm system.
As Fire Marshal Birt averred above, “the definition of fire alarm system is subject to interpretation.” The term “fire alarm system” is defined in the Seattle Fire Code:
Fire Alarm System. A system of electrical devices such as flow sensors, heat or smoke detectors which is designed and installed for the purpose of warning building occupants or the Fire Department of a fire or of causing the operations of other fire and life safety equipment. The term shall include associ[463]*463ated electrical wiring, power supplies, supervisory and control circuits.
Seattle Fire Code, App. III-B, at 496b. (emphasis added). Bypassing the automatic PA disabling feature of the fire alarm system involved manipulating “associated electrical wiring.” Thus, it appears Ellis would have been working on the fire alarm system, as the Seattle Fire Code defines it, had he actually rewired the circuit to avoid automatic disabling of the PA system. Whether the work Ellis was asked to perform involved work on the fire alarm system or purely work on the PA system is a fact question, and should go to a jury for determination.
The Court of Appeals decided against Ellis on the jeopardy element for a second reason. It said Ellis’s conduct was unnecessary to enforce the policy of allowing only certified persons to work on fire alarm systems because “such work would be ordered only after the City obtained authorization from the SFD.” Ellis, slip op. at 7. The court refers here to several declarations of various fire personnel and Seattle Center officials who averred after the fact and after Ellis had filed his lawsuit they would authorize bypass only after scrutinizing each situation as it came up and making a decision on the scene. Captain Wick, for instance, said at his deposition that in response to inquiries from Seattle Center personnel about bypassing the fire alarm system: “I think I—I believe my recollection is that I said that if I had the details and at that particular time I felt it was appropriate, I would give them authorization.” Clerk’s Papers at 218. There is no reason to doubt Captain Wick, but Seattle Center officials never conveyed this information to Ellis, despite his persistent requests for official Fire Department authorization for the bypass. They just fired him for insubordination.
Indeed, Ellis sought through his union representative the Fire Department’s position on the propriety of his working on the fire alarm system. In a letter dated January 30, 1996, Captain W. T. Denzel replied as follows:
This is to confirm that the Seattle Fire Code requires that only [464]*464persons possessing certification to service automatic fire alarm systems perform alterations to existing systems. Alterations to systems should be approved by the Seattle Fire Department Plan Review Section prior to implementation.
Clerk’s Papers at 308. This is the information Ellis had when he attended the fact-finding meeting with the Center’s human resources manager, Cunningham. Captain Denzel understood what Ellis was being asked to do was an alteration to the system, which indeed it was. Captain Denzel said such alterations require approval before implementation. In short, the Court of Appeals wrongly accepted the City’s post hoc rationalization that no one would have asked Ellis to do something the Fire Department had not approved. Ellis did not know that because no City official told him that.4 In summary, there are at least two fact issues as to the second prong of the Gardner test, both mandating reversal of the summary judgment.
The Court of Appeals made short shrift of the third element of the four-part Gardner test, causation: “The plaintiffs must prove that the public-policy-linked conduct caused the dismissal.” Because the court had rejected the jeopardy element, it concluded Ellis could not prove causation. Ellis, slip op. at 7. We disagree. There is no dispute the City fired Ellis because of his refusal prospectively to alter the fire alarm system. His dismissal letter from Seattle Center Director Anderson specifically referenced his “gross insubordination” with respect to his refusal. Thus, the causation element is established.
The Court of Appeals likewise did not find the fourth element, absence of justification (“The defendant must not [465]*465be able to offer an overriding justification for the dismissal”), was present because two prior elements of the four-part Gardner test were missing. Ellis, slip. op. at 7-8. The City claims Ellis’s termination was justified by its overriding concern for public safety. It cites to the statement of a retired SFD engineer, who said that on occasion the PA system might be needed to prevent panic in the Key Arena. It also cites to a statement from Fire Marshal Birt that because of better visibility in the Arena, it might be better to make announcements from that location rather than from the fire control room. But these statements appear to be further post hoc rationalizations and are entirely vitiated by Ellis’s assertions from the very beginning that he would always follow the verbal orders of Fire Department personnel. Clerk’s Papers at 368 (statement to Cunningham at fact-finding meeting) (“I would do the bypass if I had . . . verbal authorization from someone at the Fire Department.”).
We find some concern from the record as to the justification element. One City official admitted he did not know, at the time they were disciplined, if Ellis and Abraham were wrong about their safety concerns. Cunningham admitted, at the time he suspended Ellis and recommended firing him, he had no idea of what Captains Wick and Nelson would say about the Fire Department’s position on the bypass. He wrote to the Washington State Employment Security Department on April 26, 1996, with respect to Abraham’s resignation:
If, in fact, Mr. Abraham was correct in his understanding of the requirements of the statute [that only certified persons could work on fire alarm systems], the dismissal would have been improper and clearly not for good cause. Reaching a finite [he appears to mean definite] determination on the issue would have entailed a lengthy (many months) process leading to arbitration, during which time he would have had to live with a dismissal from employment. He chose to resign instead. As a consequence, no final judicial determination has been made on whether he or the supervisor was correct as to the interpretation of the statute.
[466]*466Clerk’s Papers at 326. Thus, on April 26, 1996, nearly three months after Cunningham suspended Ellis for insubordination, Cunningham states he still did not know whether Ellis was correct in his assertion that rewiring the fire alarm system would have been a violation of the Seattle Fire Code because of his lack of certification. Cunningham’s statement here brings into serious doubt the City’s post hoc rationalizations. Rather than finding out whether Ellis’s concerns were legitimate, the City fired him, and only after he sued did the City attempt to justify its actions by obtaining statements from Fire Department personnel.
In summary, Ellis either meets all four elements of the four-part Gardner test, or factual questions precluding summary judgment exist with respect to the jeopardy and absence of justification elements. The trial court should not have granted summary judgment to the City on the wrongful discharge cause of action.
CONCLUSION
David Ellis became concerned about the potential danger to human life that might occur if he had to alter the designed operation of the fire alarm system at Key Arena as ordered. His concern is reflected in the Seattle Fire Code, which prohibits uncertified personnel from working on fire alarm systems. Public policy should encourage the safe operation of fire alarm systems, and Ellis was furthering that public policy by refusing, as an uncertified electrician, to work on the fire alarm system to alter the way it was designed to operate, in the absence of authority for doing so. He expressed his concerns to his supervisors, told them he needed either written assurance from non-Fire Department officials or verbal assurance from Fire Department officials that it was proper for him to perform the alterations. The City responded by suspending him for gross insubordination and firing him shortly thereafter. There is no hint in the record, or claim by the City, that Ellis was anything but sincerely conscientious in his concerns, or that there were [467]*467any other reasons for firing him. In Gardner, we said: “Society places the highest priority on the protection of human life. This fundamental public policy is clearly evidenced by countless statutes and judicial decisions.” Gardner, 128 Wn.2d at 944.
We reverse the Court of Appeals in its affirmance of the trial court’s summary judgment in favor of the City and remand the case for trial on the issues of wrongful discharge in violation of public policy and retaliatory discharge pursuant to RCW 49.17.160(1).
Guy, C.J., and Smith, Johnson, Alexander, Ireland, and Bridge, JJ., concur.