OPINION
{1 Petitioner Michael R. Murray seeks review of a decision of the Appeals Board of the Labor Commission (the Board) denying his workers' compensation claim due to a lack of legal causation. We decline Murray's invitation to set aside the Board's decision.
BACKGROUND
T2 Murray was working as a park ranger for Utah State Parks and Recreation on July 13, 2008. Murray's claim for compensation arises from an incident that occurred while he was preparing to go on boating patrol at Red Fleet State Park that day. The patrol boat was tied near the end of a dock that extended thirty-five to forty feet into the water. While standing in the patrol boat, Murray untied the boat at the bow, then moved to the stern to undo the lock that secured the remaining cable. Murray bent over the edge of the boat at a thirty-five, to forty-degree angle, holding the cable and lock in his left hand and entering the combination with his right. While Murray was in this position, an unexpected five- to six-inch wave rocked the boat, knocking Murray off balance. To steady himself, Murray adjusted his right foot, brought his right arm to the edge of the boat, and twisted his body. Murray was wearing a fifteen-pound service belt and one-pound life jacket at the time. Murray felt pain in his back when he tried to steady himself; the pain increased over the next two to three hours, causing Murray to leave work early. As the pain grew over the next several days, Murray sought medical attention.
T3 On September 29, 2008, Murray filed a claim with the Labor Commission (the Commission). The Administrative Law Judge (the ALJ) concluded that Murray had an asymptomatic preexisting condition, "which was aggravated by the industrial accident." While the ALJ found medical causation, she concluded that Murray had not satisfied the higher standard of legal causation required when preexisting conditions are involved:
While the wave that came up while the Petitioner was in the boat was unexpected, the evidence does not show that this caused the Petitioner to go through any unusual exertions. He lost his balance a little but did not drop the lock or fall and was able to steady himself easily.
T4 Murray petitioned the Board to review the decision of the ALJ. The Board affirmed, explaining that "simply losing and regaining one's balance while bending over slightly, even if unexpected, is not an unusual or extraordinary exertion." Murray filed a timely petition for review in this court.
ISSUE AND STANDARD OF REVIEW
15 Murray contends that the Board erred in concluding that the work accident was not the legal cause of his back injury. Determining legal causation requires the Board first to determine the underlying facts of an incident, and second to apply the law to the facts to determine whether the test for
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legal causation is satisfied. See Price River Coal Co. v. Industrial Comm'n,
ANALYSIS
16 "The Workers' Compensation Act was enacted to provide economic protection for employees who sustain injuries arising out of their employment, therefore 'allev-iat[ing] hardship upon workers and their families'" Drake v. Industrial Comm'n,
T7 Limiting compensation to accidents "arising out of and in the course of ... employment," see Utah Code Ann. § 34A-2-401(1), requires the party seeking compensation to prove both an "accident" and "a causal connection between the injury and the employment." Allen v. Industrial Comm'n,
The parties do not dispute that an accident occurred, that Murray had a preexisting condition, or that the Board properly found medical causation. 'The only issue before this court is whether the heightened test for legal causation was satisfied.
I. Standard of Review
T9 The parties dispute the appropriate standard of review. Respondents contend that the appropriate standard for reviewing an agency's application of the law to the facts is abuse of discretion, reviewing for reasonableness and rationality. See Utah Auto Auction v. Labor Comm'n,
A. The Utah Administrative Procedures Act
110 "Prior to the adoption of the Utah Administrative Procedure[s] Act [UAPA], the Utah courts developed three levels of review in connection with ageney action." Morton Int'l, Inc. v. Utah State Tax Comm'n,
11 UAPA provided a new framework for determining the standard of review. See Morton Int'l,
The appellate court shall grant relief only if, on the basis of the agency's record, it determines that a person seeking judicial review has been substantially prejudiced by any of the following:
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(d) the agency has erroneously interpreted or applied the law; [or]
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(h) the agency action is:
(i) an abuse of the discretion delegated to the agency by statute;
(ii) contrary to a rule of the agency;
(iii) contrary to the agency's prior practice, unless the agency justifies the inconsistency by giving facts and reasons that demonstrate a fair and rational basis for the inconsistency; or
(iv) otherwise arbitrary or capricious.
Utah Code Ann. § 63G-4-403(4) (2011). The supreme court has held that the several grounds for judicial relief set forth in what is now section 68G-4-408(4) necessarily "incorporate[ ] standards that appellate courts are to employ when reviewing allegations of agency error." See Morton Int'l,
¶12 Interpreting the UAPA provision authorizing relief when "the ageney has erroneously interpreted or applied the law," see Utah Code Ann. § 63G-4-403(4)(d), the supreme court has held that questions of law and mixed questions of law and fact are generally reviewed for correctness, granting no deference to the agency. See Morton Int'l,
{13 When reviewing agency action for an abuse of discretion, the supreme court has applied a test of reasonableness. See LPI Servs. v. McGee,
B. Discretion to Apply the Law
114 Applying the foregoing UAPA framework, this court has held that the Legislature granted the Labor Commission discretion to apply the law to the cases before it. Murray argues that this "poisonous ruling" is inconsistent with Esquivel v. Labor Commission,
T15 The Labor Commission Act directs the Commission to apply the law to the cases coming before it:
The commission has the duty and the full power, jurisdiction, and authority to determine the facts and apply the law in this chapter or any other title or chapter it administers.
Utah Code Ann. § 34A-1-801 (2011). We have repeatedly held that the directive to apply the law in workers' compensation cases constitutes an express grant of authority within the meaning of UAPA case law and have thus reviewed Commission decisions for reasonableness and rationality. See Hunting v. Labor Comm'n,
116 Our analysis of section 34A-1-801 supports the approach of these cases. The Labor Commission Act gives the Commission not only "the full power, jurisdiction, and authority to ... apply the law," but also the "duty" to do so. See Utah Code Ann. § 34A-1-301. The statute explicitly extends this duty and power not only to "this chapter"the Labor Commission Act-but also to "any other title or chapter [the Commission] administers," id., which includes the Workers' Compensation Act, see id. § 84A-1-103(1). See also Esquivel,
T 17 Our interpretation of section 34A-1-301 is reinforced by the history of the provision. Before 1994, the Labor Commission Act stated, "It shall be the duty of the commission, and it shall have full power, jurisdiction, and authority to" establish employment agencies, set standards, enforce orders, publish information, and so forth. See Utah Code Ann. § 85-1-16(1) (1988). The Legislature amended the statute in 1994 to authorize and direct the Commission to apply the law: "The commission has the duty and the full power, jurisdiction, and authority to determine the facts and apply the law in this or *198 any other title or chapter that it administers and to" establish employment agencies, set standards, enforce orders, publish information, and so forth. See id. (1994) (emphasis added); Industrial Commission Authority Act, ch. 207, § 1, 1994 Utah Laws 972 {amending the Labor Commission Act effective May 2, 1994). In 1996, the Legislature amended the statute again, separating the reference to applying the law from the other general authorizing provisions-such as setting standards and enforcing orders-and placing it in the part of the chapter dealing with adjudicative proceedings, where it now appears. See Utah Code Ann. § 34A-1-801 & amend. notes (1997) (current version at id. (2011); Department of Workforce Services Act, ch. 240, §§ 181, 376, 1996 Utah Laws 969, 1076 (renumbering and amending the provision in question effective July 1, 1997).
18 In arguing that our case law is inconsistent, Murray points to a number of cases where this court has held that the Commission does not have discretion to apply the law. However, most of these cases were decided before the 1994 statutory amendment expressly bestowed this power on the Commission. See Walls v. Industrial Comm'n,
119 A few cases decided after the 1994 amendment follow the pre-amendment line of cases in finding no grant of discretion. Yet these cases generally address discretion to interpret the law rather than discretion to apply it. See Wood v. Labor Comm'n,
1 20 Murray argues that our reading of the Labor Commission Act is inconsistent with Esquivel v. Labor Commission,
121 Murray has not convineed us to overturn our extensive-and largely consistent-precedent on the issue. Given the language of the Labor Commission Act and the clear weight of this court's precedent, we reaffirm that section 34A-1-801 explicitly gives the Commission discretion to apply the law to the cases before it, including those involving the Workers' Compensation Act and the "arising out of" provision of section 34A-2-401(1).
C. Drake v. Industrial Commission
122 Murray next argues that Drake v. Industrial Commission,
123 Drake involved a challenge to the Labor Commission's application of the "special errand" rule in a workers' compensation case to determine whether a car accident arose "out of and in the course of" employment within the meaning of what is now Utah Code section 34A-2-401. See Drake,
T 24 Therefore, in Drake, the court relied on the "highly fact-sensitive" nature of "special errand" cases, the court's sparse precedent on the issue, and the policy of ensuring a 'liberal construction of the Workers' Compensation Act. See Drake,
{ 25 We do not believe that Drake intended to displace the supreme court's considered and significant precedent on UAPA standards of review. See Osman Home Improvement v. Industrial Comm'n,
126 Nevertheless, we agree that Drake's emphasis on liberally construing the Workers' Compensation Act in favor of coverage remains relevant. Although we have occasionally failed to expressly consider this policy, see, eg., Acosta v. Labor Comm'n,
127 In sum, because the Legislature has expressly granted the Commission discretion to apply the law, we review the Commission's application of the legal causation test for an abuse of discretion, applying a test of reasonableness and rationality. In determining whether the Commission's application of the law is reasonable, we must "look closely to assure ourselves that the Commission has liberally construed and applied the [Workers' Compensation] Act to provide coverage and has resolved any doubt respecting the right to compensation in favor of an injured employee." See Salt Lake City Corp. v. Labor Comm'n,
II. Legal Causation
{ 28 "The language 'arising out of [and] in the course of ... employment' found in [Utah Code section 84A-2-401(1)] was apparently intended to ensure that compensation is only awarded where there is a sufficient causal connection between the disability and the working conditions." Allen v. Industrial Comm'n,
129 A more restrictive test for legal causation is imposed when an employee has a preexisting condition that may have contributed to the injury. See Allen,
130 "To meet the legal causation requirement, a claimant with a preexisting condition must show that the employment contributed something substantial to increase the risk he already faced in everyday life because of his condition." Id. This is usually accomplished by showing that the injury was precipitated by an "unusual or extraordinary exertion" "greater than that undertaken in normal, everyday life." Id. at 25-26; see also Price River Coal,
1831 The test for what is "unusual" is an objective test, based on "what typical nonemployment activities are generally expected of people in today's society." Allen,
132 Here, the ALJ determined that "the evidence does not show that [the unexpected wave] caused the Petitioner to go through any unusual exertions. He lost his balance a little but did not drop the lock or fall and was able to steady himself easily." The Board agreed with this determination, finding that "simply losing and regaining one's balance while bending over slightly, even if unexpected, is not an unusual or extraordinary exertion."
133 Murray challenges these findings by making three arguments. First, he argues that the awkward and unusual position of his body at the time of the accident would render unusual any exertions required to steady himself when the wave came. Second, he argues that the cireumstances surrounding the accident were unusual. See generally Allen v. Industrial Comm'n,
34 Respondents reply that the cireum-stances Murray faced and the resulting exertions are comparable to several everyday situations: leaning over to reach a handhold while standing on a bus or transit train, carrying baggage on a moving sidewalk or escalator, or washing one's hands in an airplane lavatory when the aircraft hits mild turbulence.
185 We conclude that the Board's determination was reasonable. While people typically would not face Murray's exact see-nario in everyday life, it is similar to the activities and exertions common to everyday life. Murray stood in an awkward position on an unsteady surface, leaning over to unlock a cable while wearing a fifteen-pound service belt and one-pound life jacket. When an unexpected wave threw him off balance, he shifted his weight and twisted his body, placing an arm on the side of the boat to steady himself. Looking at Murray's exertion as well as the working conditions that Murray faced at the time of the accident-including the outside force to which Murray *202 reacted-we find nothing unusual or extraordinary when compared to everyday life.
36 It is not unusual to stand on an unsteady platform, such as an airplane, bus, transit train, elevator, or escalator, where an outside force can require some exertion to maintain or regain one's balance. Such exertions are often necessary even when standing on solid ground and someone or something knocks a person off balance. See Schreiber v. Labor Comm'n, 1999 UT App 376U, para. 4,
{37 Combining these various factors does not change the result. We agree that the totality of circumstances is relevant to a legal causation analysis. See American Roofing Co. v. Industrial Comm'n,
138 We find nothing doubtful about the nature of the conditions and exertions involved that would lead us to reach a different conclusion. The task Murray was performing was not "unusually arduous" or any more "physically demanding" than common tasks performed in everyday life. Cf. Chase v. Industrial Comm'n,
1 39 Therefore, we find the Board's determination to be reasonable, even when viewed in light of the policy of the Workers' Compensation Act of resolving doubts "in favor of the injured employee," see Drake v. Industrial Comm'n,
CONCLUSION
4 40 We review an agency's application of the law for correctness unless there is an explicit or implicit grant of discretion in the statute. Because the Labor Commission Act explicitly directs the Commission to apply the Workers' Compensation Act, we review the Board's application of the law for an abuse of discretion. When reviewing for abuse of discretion, we review for reasonableness and rationality in light of the text and policy of the statute in question. Rather than displacing this settled framework, Drake simply requires our review to include an increased emphasis on the policy of the Workers' Compensation Act of resolving doubts in favor of the employee. Applying this standard of review, we conclude that, even resolving doubts in favor of Murray, the Board's determination that Murray could not establish legal causation because his accident did not involve unusual or extraordinary conditions or exertions was reasonable.
{41 Therefore, we decline to disturb the Board's decision.
T 42 WE CONCUR: CAROLYN B. McHUGH, Presiding Judge and STEPHEN L. ROTH, Judge.
Notes
. Except where noted, we cite the current version of the Utah Code for the reader's convenience because the relevant portions have not changed since the events underlying Murray's petition occurred.
. In Commercial Carriers v. Industrial Commission,
. Notwithstanding the explicit statement in West-side Dixon, the supreme court appears to have later applied Drake's "conditionally deferential standard of review" in Salt Lake City Corp. v. Labor Commission,
. Murray also challenges the ALJ's and Board's determination that he "easily steadied himself" after losing his balance. Even assuming this characterization is inaccurate, we reach the same conclusion as to legal causation.
