Chief Justice:
INTRODUCTION
{1 We granted certiorari to consider whether Utah Code section 34A-2-418(5) violates the Equal Protection Clauses of the Utah and United States Constitutions by discriminating on the basis of age. Section 34A-2-413(5) provides an offset reducing the amount of benefits for individuals receiving both workers' compensation benefits and social security retirement benefits. Specifically, when an individual qualifies for both social security retirement benefits and workers' compensation benefits, and when the individual has received 312 weeks of workers' compensation, workers' compensation benefits are reduced by fifty percent of the amount the individual is receiving in social security retirement benefits. We hold that this offset violates Utah's uniform operation of the law guarantee and reverse and remand.
BACKGROUND
{2 The opinion of the court of appeals contains a thorough factual history, which we will not repeat here. See Merrill v. Labor Comm'n,
Notwithstanding the minimum rate established in Subsection (2), the compensation payable by the employer, its insurance carrier, or the Employers' Reinsurance Fund, after an employee has received compensation from the employer or the employer's insurance carrier for any combination of disabilities amounting to 312 weeks of compensation at the applicable total disability compensation rate, shall be reduced, to the extent allowable by law, by the dollar amount of 50% of the Social Security retirement benefits received by the employee during the same period.
Utah Code Ann. § 34A-2-4183(5) (2005). 1
¶3 The appellant argues that this subsection violates both the uniform operation of laws provision of article I, section 24 of the Utah Constitution and the Equal Protection Clause of the Fourteenth Amendment to the United States Constitution. He asserts that the offset treats him differently than others similarly situated without a rational basis. The Commission determined that it did not have authority to consider the constitutionality of the statute and ordered an offset in the payments. Mr. Merrill appealed to the Utah Court of Appeals. The court of appeals held:
In enacting section 418(5), the Utah Legislature may have legitimately concluded *1092 that the statute would assure employees adequate recovery for wages lost due to disability but also avoid duplication in benefits by reducing workers' compensation awards onee workers also begin receiving social security retirement payments. Additionally, the legislature may have intended to reduce the cost of workers' compensation insurance premiums for employers. Thus, we can conceive of at least two legitimate legislative purposes behind the challenged legislation.
Merrill,
T4 The court of appeals further held that "the legislature chose a reasonable means to achieve its objective" and that the statute survived rational basis review under the Utah Constitution. Id. 1T 19-20.
STANDARD OF REVIEW
15 On certiorari, we review the decision of the Utah Court of Appeals for correctness. Thomas v. Color Country Mgmt.,
ANALYSIS
I. WE CONSIDER THIS EQUAL PROTECTION CHALLENGE UNDER THE FRAMEWORK OF UTAH LAW
16 Mr. Merrill has challenged the constitutionality of the statute under both the Utah Constitution and the United States Constitution. The uniform operation of laws provision of the Utah Constitution provides, "All laws of a general nature shall have uniform operation." Utah Const. art. I, § 24. Similarly, the Fourteenth Amendment of the United States Constitution provides for equal protection of the laws. U.S. Const. amend. XIV, § 1. The purpose of the uniform operation of laws provision is to prevent "classify ing persons in such a manner that those who are similarly situated with respect to the purpose of a law are treated differently by that law, to the detriment of some of those so classified." Blue Cross & Blue Shield of Utah v. State,
17 The uniform operation of laws provision and the Equal Protection clause address similar concerns in determining the constitutionality of a statute. Both have as their basic concept "the settled concern of the law that the legislature be restrained from the fundamentally unfair practice of creating classifications that result in different treatment being given [to] persons who are, in fact, similarly situated." Mountain Fuel Supply Co.,
*1093 IL -THE STATUTE IS UNCONSTITUTIONAL
18 The United States Supreme Court has held that age is not a suspect classification, and statutes that create classifications based on age are analyzed under a rational basis review. Mass. Bd. of Ret. v. Murgig,
T9 We undertake a three-part inquiry to determine if a statute violates the uniform operation of laws. "In serutinizing a legislative measure under article I, § 24, we must determine whether the classification is reasonable, whether the objectives of the legislative action are legitimate, and whether there is a reasonable relationship between the classification and the legislative purposes." Blue Cross & Blue Shield of Utah v. State, T9 P.2d 634, 637 (Utah 1989).
A. It Is Reasonable to Classify Based on Age but It Is Not Reasonable to Classify Injured Workers Based on Receipt of Social Security Rettrement Benefits
10 The first step in the test is to determine if the classification made in the statute is reasonable. In deciding if a classification is reasonable, we have considered: (1) if there is a greater burden on one class as opposed to another without a reason; (2) if the statute results in unfair discrimination; (3) if the statute creates a classification that is arbitrary or unreasonable; or (4) if the statute singles out similarly situated people or groups without justification. See Weber Basin Home Builders Ass'n v. Roy City,
¶11 In differentiating between injured workers who qualify for social security retirement benefits and those who do not, Utah Code section 34A-2-418(5) creates two classifications, one implicitly based on age and the other based on the receipt of benefits. The statute implicitly relies on age by using the benchmark of social security retirement benefits. Individuals under the age of sixty-five are not eligible for social security retirement benefits. The statute also classifies based on eligibility for benefits by reducing workers' compensation benefits if workers are receiving social security retirement benefits.
¶12 As the court of appeals pointed out, the United States Supreme Court has held that age is a permissible method of classifying individuals where a rational basis exists. See Merrill v. Labor Comm'n,
¶ 13 The classification at issue in this case, however, is more complicated than simply whether an individual is over the age of sixty-five. The classification also depends on whether an individual is eligible for social security retirement. Eligibility for social security retirement is based on several factors, *1094 including the number of years an individual has worked and contributed to the social security fund. Individuals who are over the age of sixty-five and not receiving social security retirement benefits are treated differently than individuals over the age of sixty-five and receiving social security benefits.
T 14 In State Tax Commission v. Department of Finance, this court evaluated the constitutionality of a provision of the Utah Workers' Compensation Act that taxed the State Insurance Fund more than private insurance carriers or self-insurance.
Nor can justification be found for the statute on the theory that it reduces insurance rates. That may be true, but there is no valid justification for achieving that objective by singling out nonpaying automobile guests. It would be just as logical to select out all victims of automobile accidents caused by Ford automobiles. That also would reduce insurance premiums, but there is no rational basis for discriminating against the disadvantaged class in either case.
Id.
¶ 15 It is not reasonable for a state legislature to classify individuals based on the receipt of federal social security retirement benefits because this classification singles out certain people without a rational basis. In Reesor v. Mont. State Fund,
[Bloth classes have suffered work-related injuries, are unable to return to their time of injury jobs, have permanent physical impairment ratings and must rely on [the workers' compensation act] as their exclusive remedy under [the] law.... Furthermore, chronological age and the corresponding eligibility for social security retirement benefits is unrelated to a person's ability to engage in meaningful employment.
Id.
(16 Presumably, the legislature was attempting to account for the additional income available to social security retirement recipients. But if income is the criterion, there is no rational basis to rely only on income from a single source.
T 17 The statute fails based on its classification scheme alone. However, even assuming the classification was justified, we still find the classification unconstitutional because it is not reasonably related to a legitimate legislative objective.
B. The Legislature Has Two Legitimate Objectives
118 The next step in the analysis is to determine if the legislature has a legitimate objective in creating the classification. Gallivan v. Walker,
¶19 The court of appeals identified two possible objectives the legislature could have had in creating the offset: to prevent the duplication of disability benefits and to reduce the cost of workers' compensation for employers. Merrill,
T 20 Preventing the duplication of benefits and restoring the solvency of the workers' *1095 compensation fund are legitimate objectives. Reducing employers' liability for workers' compensation payments is not a legitimate objective because the Workers' Compensation Act has already limited the Hability of employers for injuries employees receive while on the job to statutorily-defined recoveries. It is not a legitimate objective of the legislature to further reduce employer liability based on payment of funds an employee would be entitled to regardless of eligibility for workers' compensation; nor is it legitimate to take into account the money the employee has contributed to social security retirement.
T21 Nonetheless, because the legislature had two legitimate objectives in creating the offset, we evaluate whether there is a reasonable relationship between the classifications and the objectives.
C. There Is No Reasonable Relationship Between The Classifications and The Objectives
122 In the last step of the three-part inquiry, we determine whether the legislature's classification is reasonably related to its legitimate objectives. Gallivan,
23 Although creating a solvent insurance fund and preventing the duplication of disability benefits are legitimate objectives, we do not believe that reducing the workers' compensation benefits of individuals age sixty-five and older who qualify for social seeu-rity retirement benefits reasonably achieves those objectives. The purposes of workers' compensation and social security retirement benefits are not the same, and neither can legitimately serve as a substitute for the other. Because workers' compensation benefits and social security retirement benefits are not duplicative, offsetting workers' compensation benefits against social security retirement benefits is not a rational means to prevent the duplication of benefits or to achieve a solvent workers' compensation fund.
1. The Purpose of Workers' Compensation Is to Provide an Exclusive Remedy for Injuries
124 The Workers Compensation Act was enacted to assure the injured employee and his family "an income during the period of his total disability as well as compensation for any resulting permanent disability, to eliminate the expense, delay, and uncertainty of the employee having to prove the employer's negligence, and to place the burden of industrial injuries on industry." State Tax Comm'n,
125 In exchange for their right to sue, injured workers receive compensation for damages incurred by an on-the-job injury including compensation for the injury itself; medical, nurse, and hospital services; and medicines. Utah Code Ann. § 84A-2-401 (2005). The workers' compensation system in Utah does not provide a measure to opt out, unless employers fail to pay to the workers' compensation fund, in which case the employee may bring a civil action. Id. § 34A- *1096 2-105 (2005 & Supp.2008); id. 34A-2-207 (2005). The Workers' Compensation Act is the sole remedy for injured employees. Id. As such, it is much more than a wage-replacement system.
2. The Purpose of Social Security Retirement Benefits Is to Serve as a Pension for Individuals Reaching the Age of Sixty-Five
T26 The purpose of social security retirement benefits is entirely different from the workers' compensation scheme. " 'Social security retirement benefits are provided to persons over age sixty-five regardless of injury.... These benefits are not disability benefits, but are old-age entitlements serving the same function as pension payments'" Golden,
27 Social security retirement benefits allow participants to receive income after age sixty-five if they have contributed adequately to the fund. See Reesor,
3. Social Security Retirement Benefits and Workers' Compensation Disability Payments Are Not Duplicative and Are Not Wage-Loss Replacements
' 28 The court of appeals found that it was reasonable for the legislature to draft a provision offsetting workers' compensation by social security retirement because the two systems provided duplicate benefits and because both social security retirement and workers' compensation were income-loss substitutes. -It relied on Richardson v. Belcher,
129 We hold that social security retirement benefits and workers' compensation benefits are not duplicative. Neither social security retirement benefits nor workers' compensation are solely wage-replacement measures; each serve additional purposes. Furthermore, retirement benefits and disability benefits utilize entirely different means to accomplish those purposes.
11 30 First, "the two programs ... compute benefits on entirely different bases and compensate for entirely different eventualities...." State ex rel. Boan v. Richardson, 482 $.E.2d at 168.
[Slocial security retirement benefits and social security disability benefits are two distinct programs and cammot offset one another due to the fact that both programs are based on completely different concepts. We see no reason why a forty-year-old injured worker should receive full [permanent partial disability] benefits pursuant to [statute], and a sixty-five-year-old worker with an identical injury should receive only an impairment award due to the fact he has reached social security retirement age. There is no rational basis to deny a class of injured workers a category of benefits based upon their age.
Reesor,
T31 Second, social security retirement benefits are not paid in connection with an injury or disability, but are paid after an individual has contributed to the fund. See Reesor,
32 Third, the Senior Citizen's Freedom to Work Act, 42 U.S.C. § 402 (2000), has allowed individuals over the age of sixty-five to receive social security benefits and continue to work, thus invalidating the rationale that social security retirement benefits are a wage replacement. The effect of this Act in the context of reducing workers' compensation benefits has been noted as such:
The dissent urges that there was a clear purpose to this legislation: to prevent double payment to an employee out of two different government programs which are designed to replace a loss of wages. The problem with this analysis is that social security retirement benefits are not wage loss benefits. There is no requirement that to be entitled to social security benefits a person must stop working. In 2000, the federal government enacted the Senior Citizen's Freedom to Work Act (42 U.S.C. 402) which eliminated the earnings limit for workers over the age of 65. Thus, there is no longer a reduction in social security retirement benefits due to wages regardless of the amount of wages earned by individuals age 65 and older.
Reesor,
133 Fourth, the public policy in the Age Discrimination in Employment Act, 29 U.S.C. § 628(a)(1) (2006), further supports the proposition that social security retirement benefits are not wage loss benefits and are not duplicative of workers' compensation benefits. See Romero v. Industrial Claim Appeals Office,
T34 Finally, we agree with the Supreme Court of Appeals of West Virginia that
the total denial of benefits based on the assumption that one eligible to receive old age social security benefits is fully compensated for his injury by some level of workers' compensation benefits, reduced by a portion of social security benefits, raises a genuine issue as to whether the workers' compensation scheme is an adequate substitute remedy for that which might be available in the tort system for such an injury, thus implicating the validity of the system as a substitute for access to the courts.
State ex rel. Boan v. Richardson,
*1098
1135 We acknowledge that other jurisdictions have come to the opposite conclusion. See Merrill,
4. It Is Not Rational to Offset Workers' Compensation Disability Payments by Fifty-Pereent of Social Security Retirement Benefits
136 In this case, the legislature has singled out injured individuals who have contributed to the economy by working the required number of years to qualify for social security retirement benefits, and punished them by reducing their workers' compensation benefits. This is not a rational response to the legislature's concerns about maintaining the solvency of the workers' compensation fund or preventing employees from receiving duplicate benefits. We agree that
economic viability of the workers' compensation program and eradication of duplicate benefits are worthy and lofty goals, but we fail to see how workers' compensation benefits paid for loss of the ability to earn the same wages and a retirement benefit under social security are duplica-tive in any respect. The economic objective behind [the statute] to save money may be reasonable but the means for achieving that particular end are not, and, hence, the statute fails to withstand constitutional scrutiny.
Golden,
1 37 We agree with other jurisdictions that have held similar statutes unconstitutional. See State ex rel. Boan v. Richardson,
CONCLUSION
38 Utah Code section 34A-2-418(5) violates Utah's uniform operation of laws provision by unconstitutionally singling out and reducing workers' compensation benefits of injured individuals over the age of sixty-five who qualify for social security retirement benefits. We declare the offset provision in the statute unconstitutional and reverse and remand for the court of appeals to enter an order in accordance with this opinion.
Notes
. This section was enacted in 1988 and not amended until 2005. The 2005 amendments made stylistic changes that do not affect our analysis; so, we cite to the 2005 version. The statute was subsequently amended in 2008. Utah Code Ann. § 34A-2-413(5) (Supp.2008). This amended version of the statute is substantially the same as the version at issue in this case, with the exception of a cost-of-living increase which has no impact on our analysis. See id. § 34A-2-413(5)(b)(i). Thus the analysis we apply to the 2005 version is also applicable to the 2008 version.
