OPINION
PAGE, Justice.This workers’ compensation matter comes before this court by certiorari upon the relation of Jeffrey Kline. Kline seeks review of a decision of the Workers’ Compensation Court of Appeals (WCCA) re*15versing an arbitrator’s denial of benefits and remanding for reconsideration. Concluding that Kline is entitled to a new arbitration, we affirm as modified.
On May 8, 2001, Jeffrey Kline sustained a work-related injury to his right lower abdomen while employed as a carpenter for Berg Drywall, Inc. The injury occurred as Kline was lifting a piece of sheetrock that buckled.
On May 17, 2001, Kline sought medical treatment at Park Nicollet Medical Center (PNMC), complaining of right groin pain and pain in the lower quadrant. Dr. Thomas Lohstreter diagnosed a right inguinal hernia or internal ring strain and allowed Kline to return to work with a 20-pound lifting restriction. Dr. Kevin Ose at PNMC examined Kline on May 24 and May 31, 2001, and diagnosed a right groin strain with no evidence of an inguinal hernia. Dr. Ose advised Kline to avoid lifting and strenuous activity. On June 4, 2001, Dr. Robert Gorman at PNMC examined Kline and also diagnosed a right groin strain. Dr. Gorman extended the lifting restrictions and ordered an ultrasound, which showed a normal abdominal wall with no evidence of a hernia. At a followup visit with Dr. Gorman on July 3, 2001, the doctor diagnosed a right groin strain and a right adductor thigh strain. On August 15, 2001, Kline returned to Dr. Gorman for further follow-up on his right groin and thigh complaints. During this visit, Kline stated that over the last few weeks he had felt more depressed, lacked interest in usual activities, lacked concentration, and struggled with feelings of guilt and worthlessness. Dr. Gorman diagnosed a chronic right groin strain and right adductor thigh strain and prescribed Paxil for depression. Dr. Gorman recommended an MRI scan and continued restrictions of 20 to 40 pounds of lifting, with limited bending, twisting, and sitting, and the ability to change positions as needed. An MRI scan of Kline’s right hip on August 22, 2001, was normal.
On September 18, 2001, Kline saw Dr. Ali Ahmad Hamidi at PNMC with continued complaints of groin pain. Dr. Hamidi found no swelling, but noted severe tenderness over the medial aspect of the inguinal area and tenderness in the groin, testicle, and cords. Dr. Hamidi diagnosed right groin and testicle pain due to the work injury. On October 16, 2001, Kline returned to see Dr. Gorman. The doctor’s diagnosis was unchanged and he continued the same restrictions. Dr. Gorman increased Kline’s daily Paxil dosage and suggested that Kline contact the mental health department for further evaluation and treatment. At a follow-up visit on November 15, 2001, Dr. Gorman concluded that Kline had reached maximum medical improvement and found no permanent partial disability. However, Dr. Gorman continued lifting restrictions and, in a March 6, 2002, report, Dr. Gorman concluded the May 8, 2001, accident caused a permanent injury to Kline’s right lower quadrant. In the same report, Dr. Gorman indicated the work-related injury aggravated Kline’s depression.
Berg Drywall and its workers’ compensation liability insurer, American Compensation Insurance Co./RTW, accepted liability for the injury. Subsequently, a dispute arose over the nature, extent, and duration of Kline’s injury and disability. Pursuant to the collective bargaining agreement between Kline’s union and Berg Drywall, work-related-injury disputes were to be resolved through an alternative dispute resolution system permitted under Minn. Stat. § 176.1812 (2002). Under the terms of the agreement, work-related-injury disputes are addressed through the Rules and Regulations of the Union Construction Crafts Workers’ Compensation Fund *16(Fund). The Fund is not an insurance provider or program, but a claim dispute administration service. The Fund is made up of a 12-person board consisting of six members chosen by labor and six members chosen by management. Kevin Gregerson is the administrator and dispute resolution facilitator of the Fund. The rules of the Fund provide for a three-step process for resolving disputes: facilitation, mediation, and arbitration. Fund R. 3.1 (2001).
In September 2001, at the request of the employer and insurer, Gregerson scheduled a dispute resolution examination with Dr. Mark H. Johnson.1 Gregerson furnished the doctor with Kline’s medical records, a “work comp summary” prepared by the employer’s office manager, and a copy of the surveillance reports. Kline was examined by Dr. Johnson on November 6, 2001. Dr. Johnson found no medical evidence to indicate that Kline had sustained any significant work injury. He believed that, while Kline may have sustained a strain in the right inguinal area that may have taken several weeks to resolve, there was no indication of any significant damage. The doctor also believed there was symptom magnification and, perhaps, malingering, and noted a great disparity between Kline’s reports of what he was able to do “and the actual observation of his physical activities.” Dr. Johnson said Kline was not in need of any restrictions for his work injury and that he suffered no permanent partial disability. On November 26, 2001, the employer terminated Kline’s employment.2
Kline retained attorney Russell G. Sundquist to represent him at a facilitation scheduled for December 18, 2001. By letter faxed and mailed on December 17, 2001, Sundquist was provided with a copy of the Fund’s rules and regulations that provide that “counsel shall not be present during the facilitation unless all parties agree.” Id. at R. 3.4. Kline attended the facilitation without legal counsel. Kathy Berg, manager/owner of Berg Drywall, Kris Mitlestaedt, Berg Drywall office manager, and Mary Dennis, American Compensation Insurance Co./RTW claims representative, attended the facilitation on behalf of the employer and insurer. The facilitator’s decision, terminating the employee’s benefits, was apparently rendered on December 26, 2001. The parties proceeded to mediation; and when that proved unsuccessful, Kline filed an application for arbitration.
While the arbitration was pending, Gre-gerson scheduled a dispute resolution examination with Dr. Stephen Butzer, a psychiatrist, who examined Kline on May 22, 2002. Gregerson furnished Dr. Butzer with medical records, letters, comments from both parties, and a list of questions for the doctor’s response. Dr. Butzer concluded that Kline was malingering and that any mental health problems were unrelated to the work injury.
The arbitration hearing took place on June 24, 2002, before arbitrator Jeffrey W. Jacobs, who affirmed the discontinuance of benefits. Concluding that a dispute resolution examination was to be given greater weight than a traditional independent medical examination under the Fund’s arbitration rules, the arbitrator found that Kline’s work injury was temporary in na*17ture and had resolved no later than November 21, 2001. The arbitrator also concluded that Kline had not established a psychological injury. Kline appealed to the WCCA, asserting that: (1) the Fund’s alternative dispute resolution (ADR) system, by prohibiting legal representation in the early stages of the process, was unconstitutional and also void under MinmStat. § 176.1812, subd. 4 (2002); (2) there was an inherent conflict of interest in the arbitration; (3) the arbitrator misconstrued the arbitration rules in giving greater weight to the dispute resolution examination; and (4) the neutral physician process was inherently flawed.
The WCCA rejected Kline’s challenges to the ADR system and declined to rule on the constitutional claim, noting that it was not empowered to resolve constitutional issues. Kline v. Berg Drywall, Inc., 2003 WL 1917004, at *4 (Minn. WCCA Mar. 31, 2003) (citing Minn.Stat. § 175A.01, subd. 5 (2002)). The WCCA, however, agreed that the arbitrator misconstrued the Fund’s rules in giving greater weight to the dispute resolution examination reports and remanded the matter for reconsideration. Id. at *7. In seeking our review, Kline reasserts his challenges to thé validity of the ADR process based on the exclusion of legal counsel in the early stages of the process and also on an inherent conflict of interest. The employer and insurer and the Fund, appearing as amicus curiae, assert that this court does not have jurisdiction to hear, consider, and decide the matter.
I.
“The workers’ compensation system in Minnesota is based on a mutual renunciation of common law rights and defenses by employers and employees alike.” Minn. Stat. § 176.001 (2002). “[A]n injured employee is guaranteed compensation from his or her employer for work-related injuries regardless of the employee’s fault or the employer’s lack of fault, in exchange for forfeiting the right to sue the employer in tort.” Minnesota Breiving Co. v. Egan & Sons Co., 574 N.W.2d 54, 58 (Minn.1998) (citing Lambertson v. Cincinnati Welding Corp., 312 Minn. 114, 120-21, 257 N.W.2d 679, 684 (1977)). In most other circumstances, the employee retains his or her common law right to recover in tort from a negligent third party. Id. “Strictly speaking, the rights and liabilities created by the Workers’ Compensation Act are imposed on the employment relationship pursuant to the police power, independently of any actual or implied contract.” Joyce v. Lewis Bolt & Nut Co., 412 N.W.2d 304, 307 (Minn.1987) (citing Todeva v. Oliver Iron Mining Co., 232 Minn. 422, 428, 45 N.W.2d 782, 788 (1951)).
The act originally provided that settlements for workers’ compensation claims were to be in substantial accord with the statutory compensation schedule and provisions for distribution and had to be approved by a judge of the district court. Act of Apr. 24, 1913, ch. 467, § 22, 1913 Minn. Laws 685 (codified at MinmStat. § 8216(1) (1913)). In the case of a dispute or a failure to agree upon a claim for compensation, either party could submit the claim to a judge of the district court who was to hear and summarily determine the dispute. Id. at 686 (codified at Minn. Stat. § 8216(2) (1913)). The judge’s decision was conclusive and binding, subject to a right of appeal to this court. Id. at 688-89 (codified at Minn.Stat. § 8225 (1913)).
“It soon became apparent that despite the stated amounts of compensation payable for permanent partial disability resulting from any of an array of specified disabilities, the parties were often in serious disagreement.” Meath v. Harmful Substance Comp. Bd., 550 N.W.2d 275, 278 *18(Minn.1996). Consequently, in 1921 the act was amended to transfer adjudication of compensation claims to the Industrial Commission in the Department of Labor and Industry. Act of Mar. 14,1921, ch. 81, § 2, 1921 Minn. Laws 86 (codified at Minn. Stat. § 4033 (1923)); Act of Mar. 15, 1921, ch. 82, § 42, 1921 Minn. Laws 116-17 (codified at Minn.Stat. § 4302 (1923)). The legislation provided for a hearing and decision with respect to eligibility for compensation, medical expenses, and the extent of injury and disability before a referee of the Industrial Commission with a right of appeal to the Industrial Commission. Act of Mar. 15, 1921, ch. 82, §§ 42, 43, 50, 1921 Minn. Laws 116-17, 119 (codified at Minn. Stat. §§ 4302, 4303, 4310 (1923)). For error of law or on the ground that the findings of fact were unwarranted by the evidence, review by certiorari could be had in this court. Act of Mar. 15, 1921, ch. 82, § 60, 1921 Minn. Laws 122-23, amended by Act of Apr. 21, 1921, ch. 423, § 2, 1921 Minn. Laws 652-53 (codified at Minn.Stat. § 4320 (1923)). In Breimhorst v. Beckman, we held that the vesting of quasi-judicial powers in the Industrial Commission, including the power to determine facts and apply the law in workers’ compensation disputes, did not violate the separation of powers under the Minnesota Constitution as long as the commission’s awards and determinations are subject to review by this court on certiorari. 227 Minn. 409, 433, 35 N.W.2d 719, 734 (1949).
“The workers’ compensation adjudication system [has been] based to a significant extent on the judicial model of deci-sionmaking.” Hirsch v. Bartley-Lindsay Co., 537 N.W.2d 480, 486 (Minn.1995). Currently, a compensation judge at the Office of Administrative Hearings serves as factfinder and decisionmaker. Minn. Stat. § 176.371 (2002). The compensation judge develops all of the evidence, including that contrary to the claimant’s position, through hearings and investigations, and the compensation judge issues a decision based upon relevant evidence. Minn.Stat. § 176.411 (2002). “While compensation judges are not ‘constitutionally protected,’ they do have a certain degree of independence from the agency in which they adjudicate disputes as they are the people who have been charged with the responsibility of ascertaining the substantial rights of the parties in a fair and objective manner.” Hirsch, 537 N.W.2d at 487. Decisions of the compensation judge are appealable to the WCCA, an independent agency in the executive branch. Minn.Stat. §§ 175A.01, subd. 1, 176.421, subd. 1 (2002). Decisions of the WCCA are subject to review by this court on certiorari. Minn.Stat. § 176.471, subd. 1 (2002).
“A new and popular reform in the workers’ compensation movement are laws allowing employers and unions to opt out of the state-run adjudicatory system and collectively bargain workers’ compensation.” Ellyn Moscowitz & Victor J. Van Bourg, Carve-Outs and the Privatization of Workers’ Compensation in Collective Bargaining Agreements, 46 Syracuse L.Rev. 1, 18 (1995). Legislation allowing the privatization of workers’ compensation commonly contains an ADR system, “which in most contracts includes a three stage process involving an ombudsman, mediation and arbitration.” Id. at 3-4. Another “common characteristic of the contracts” is the denial of legal representation “until an ombudsman and a mediator have had an opportunity to resolve the dispute in question.” 3 Id. at 4.
*19In Minnesota, the Chamber of Commerce and the AFL-CIO lobbied the legislature for the inclusion of workers’ compensation in a collective bargaining agreement. Linda J. Starr, Note, Injured on the Job: Using Alternative Dispute Resolution to Improve Workers’ Compensation in Minnesota, 18 Hamline J. Pub.L. & Pol’y 487, 513-14 (1997).4 In
1995, the legislature adopted legislation allowing employers and unions to include in collective bargaining agreements a workers’ compensation ADR system. Act of May 25, 1995, ch. 231, art. 2, § 71, 1995 Minn. Laws 2052-53 (codified at Minn.Stat. § 176.1812, subd. 1 (2002)).5 All agreements must meet filing and data-reporting requirements. Id. at 2054 *20(codified at Minn.Stat. § 176.1812, subd. 2 (2002)).6 Any agreement that “diminishes an employee’s entitlement to benefits” is null and void. Id. (codified at Minn.Stat. § 176.1812, subd. 4 (2002)).7
As indicated earlier, Kline’s union and Berg Drywall, as part of a collective bargaining agreement, adopted an ADR system that provides for a three-step process: facilitation, mediation, and arbitration. Fund R. 3.1. At the facilitation stage, the facilitator communicates with the parties and not with legal counsel; and although a party may retain legal counsel at any time, legal counsel is excluded from the facilitation unless all parties agree otherwise. Id. at Rs. 3.2, 3.4. A party dissatisfied with the determination of a facilitator may apply for mediation. Id. at R. 3.4. At the mediation stage, either party may be accompanied by legal counsel, but the mediator communicates directly with the parties and not through legal counsel. Id. at R. 5.4. If the dispute is not resolved at the mediation stage, the dispute may proceed to arbitration. Id. at R. 6.1. Legal counsel apparently is permitted to participate in the arbitration; and attorney fees are determined by the arbitrator and paid in accordance with the Workers’ Compensation Act. See id. at R. 6.3. The decision of the arbitrator may be appealed to the WCCA; but the decision of the WCCA is not appealable. Union Constr. Crafts Workers’ Comp. Fund R. 6.5 (2001).
II.
Respondents’ employer and insurer and the amicus curiae maintain that we lack jurisdiction over this dispute because the Rules and Regulations of the Union Construction Crafts Workers’ Compensa*21tion Fund only permit an appeal to the WCCA. The rules do not permit further appeal. Kline contends that he has a constitutional right to appeal.
In authorizing the inclusion of ADR systems in a collective bargaining agreement, the legislature required that the system had to provide for judicial oversight:
A system of arbitration shall provide that the decision of the arbiter is subject to review either by the workers’ compensation court of appeals in the same manner as an award or order of a compensation judge or, in lieu of review by the workers’ compensation court of appeals, by the office of administrative hearings, by the district court, by the Minnesota court of appeals, or by the supreme court in the same manner as the workers’ compensation court of appeals and may provide that any arbiter’s award disapproved by a court be referred back to the arbiter for reconsideration and possible modification.
Minn.Stat. § 176.1812, subd. 1(a). Respondents and amicus curiae read the “or” and “in lieu of’ language as permitting limitation of judicial review. But as Kline points out, the statute also says that the arbitrator’s decision shall be “subject to review” by the WCCA “in the same manner as an award or order” of a compensation judge. Decisions of the WCCA, under the Workers’ Compensation Act, are subject to review by this court. Minn.Stat. § 176.471, subd. 1.
Due process, “when applied to judicial proceedings means a course of legal conduct consonant with rules and principles established in our system of jurisprudence for the protection and enforcement of private rights.” Hunter v. Zenith Dredge Co., 220 Minn. 318, 326, 19 N.W.2d 795, 799 (1945). Due process requires “the right of appeal from or review of a decision regarded by a litigant as unjust.” Id. The administrative procedures created to implement workers’ compensation laws survived constitutional separation of powers concerns, in part, because the agency’s awards and determinations were subject to review by this court. Breimhorst, 227 Minn, at 433, 35 N.W.2d at 734.
A workers’ compensation claim is not a private personal injury claim against the employer and the insurance carrier. Monson v. White Bear Mitsubishi 668 N.W.2d 534, 538 (Minn.2003). Workers’ compensation “ ‘is social legislation, providing a measure of security to workers injured on the job, with the burden of that expense considered a proportionate part of the expense of production.’ ” Id. at 539 (quoting Franke v. Fabcon, Inc., 509 N.W.2d 373, 376 (Minn.1993)):
[T]he entire compensation system has been set up and paid for, not by the parties, but by the public. The public has ultimately borne the costs of compensation protection in the price of the product, and it has done so for the specific purpose of avoiding having the disabled victims of industry thrown on private charity or public relief. To this end, the public has enacted into law a scale of benefits that will forestall such destitution.
8 Arthur Larson & Lex K. Larson, Larson’s Workers’ Compensation Law § 132.04(1) (2003). Accordingly, the resolution of workers’ compensation disputes is not a purely private concern. Traditionally, the binding resolution of those disputes is exclusively a public function. The statutory authorization for private ADRs essentially delegates the quasi-judicial function of the agency to private parties, making actions of those parties in that capacity state action. Cf. Edmonson v. Leesville Concrete Co., 500 U.S. 614, 625, 111 S.Ct. 2077, 114 L.Ed.2d 660 (1991) (stating, “If a *22government confers on a private body the power to choose the government’s employees or officials, the private body will be bound by the constitutional mandate of race neutrality.”); Smith v. Allwright, 321 U.S. 649, 660, 64 S.Ct. 757, 88 L.Ed. 987 (1944) (stating, “[T]he recognition of the place of the primary in the electoral scheme makes clear that state delegation to a party of the power to fix the qualifications of primary elections is delegation of a state function that may make the party’s action the action of the [sjtate.”).
It is important to understand that this case is not about an employee and employer, in the face of a legal problem, making a mutually voluntary decision to pursue arbitration in lieu of dispute resolution in the workers’ compensation system. In the collective bargaining context, arbitrators perform functions different from those performed by courts:
The labor arbitrator’s source of law is not confined to the express provisions of the contract, as the industrial common law-the practices of the industry and the shop-is equally a part of the collective bargaining agreement although not expressed in it. The labor arbitrator is usually chosen because of the parties’ confidence in his knowledge of the common law of the shop and their trust in his personal judgment to bring to bear considerations which are not expressed in the contract as criteria for judgment. The parties expect that his judgment of a particular grievance will reflect not only what the contract says but, insofar as the collective bargaining agreement permits, such factors as the effect upon productivity of a particular result, its consequence to the morale of the shop, his judgment whether tensions will be heightened or diminished. For the parties’ objective in using the arbitration process is primarily to further their common goal of uninterrupted production under the agreement, to make the agreement serve their specialized needs. The ablest judge cannot be expected to bring the same experience and competence to bear upon the determination of a grievance, because he cannot be similarly informed.
United Steelworkers v. Warrior & Gulf Nav. Co., 363 U.S. 574, 581-82, 80 S.Ct. 1347, 4 L.Ed.2d 1409 (1960).
Given the unique nature of the collective bargaining process, the Court held in United Steelworkers v. American Manufacturing Co.:
The function of the court is very limited when the parties have agreed to submit all questions of contract interpretation to the arbitrator. It is confined to ascertaining whether the party seeking arbitration is making a claim which on its face is governed by the contract. Whether the moving party is right or wrong is a question of .contract interpretation for the arbitrator. In these circumstances the moving party should not be deprived of the arbitrator’s judgment, when it was his judgment and all that it connotes that was bargained for.
363 U.S. 564, 567-68, 80 S.Ct. 1343, 4 L.Ed.2d 1403 (1960).
Although initially reluctant to do so, the Court eventually extended its commercial arbitration precedent to claims under the Age Discrimination in Employment Act (ADEA). Gilmer v. Interstate/Johnson Lane Corp., 500 U.S. 20, 26, 111 S.Ct. 1647, 114 L.Ed.2d 26 (1991). As a condition of employment, a registered securities representative had signed a uniform securities registration statement that required him to “ ‘arbitrate any dispute, claim or controversy.’ ” Id. at 23, 111 S.Ct. 1647. The Court held that the representative’s ADEA claim was subject to compulsory arbitration: “[B]y agreeing to ar*23bitrate a statutory claim [an employee] does not forgo the substantive rights afforded by the statute; [he] only submits to their resolution in an arbitral, rather than a judicial, forum.” Gilmer, 500 U.S. at 26, 35, 111 S.Ct. 1647 (quoting Mitsubishi Motors Corp. v. Soler Chrysler-Plymouth, Inc., 473 U.S. 614, 628, 105 S.Ct. 3346, 87 L.Ed.2d 444 (1985)). “[S]o long as the prospective litigant effectively may vindicate [his or her] statutory cause of action, the statute will continue to serve both its remedial and deterrent function.” Id. at 28, 111 S.Ct. 1647 (alterations in original) (quoting Mitsubishi, 473 U.S. at 637, 105 S.Ct. 3346). For arbitration of statutory claims to be enforceable, minimum standards of procedural fairness require sufficient judicial review to ensure compliance with governing laws. Cole v. Burns Int’l Sec. Servs., 105 F.3d 1465, 1487 (D.C.Cir.1997).
Respondents and amicus curiae apparently agree that due process requires that a dispute resolution system provide some level of judicial review, but they take the position that review by the WCCA is sufficient. The WCCA, however, is an agency in the executive branch of government. Minn.Stat. § 175A.01, subd. 1. Moreover, the WCCA is of limited jurisdiction, having authority only to determine matters within the workers’ compensation system. Minn. Stat. § 175A.01, subd. 5 (2002) (stating the WCCA has no authority “in any case that does not arise under the workers’ compensation laws of the state”). In declining to address the merits of the constitutional claim Kline raised here, the WCCA acknowledged that it did not have authority to rule on that claim. See Irwin v. Surdyk’s Liquor, 599 N.W.2d 132, 135 (Minn.1999).
The presumption is that a statute is constitutional, and we are required to place a construction on the statute that will find it so if at all possible. In re Cold Spring Granite Co., 271 Minn. 460, 467, 136 N.W.2d 782, 787 (1965) (stating, “If the act is reasonably susceptible of two different constructions, one of which would render it constitutional and the other unconstitutional, we must adopt the one making it constitutional.”). It seems highly doubtful that the legislature intended the limitation of review of an arbitrator’s decision to the WCCA, particularly when such a limitation necessarily implicates due process and separation of powers concerns. Accordingly, we conclude that Minn.Stat. § 176.1812, subd. 1(a), does not authorize preclusion of judicial review.8
III.
The amicus curiae also asserts that we do not have jurisdiction over this dispute because the ADR process is part of the larger collective bargaining agreement and is governed by federal law.9 *24Section 301 of the Labor Management Relations Act makes private sector collective bargaining agreements enforceable in federal court. That section vests jurisdiction in federal courts over “[s]uits for violation of contracts between an employer and a labor organization representing employees in an industry affecting commerce.” 29 U.S.C. § 185(a) (2001). Section 301 preempts claims in which resolution of the dispute “is substantially dependant upon analysis of the terms of [a collective bargaining agreement].” Allis-Chalmers Corp. v. Lueck, 471 U.S. 202, 220, 105 S.Ct. 1904, 85 L.Ed.2d 206 (1985).
However, section 301 does not preempt a claim alleging state law substantive rights that apply without regard to the collective bargaining agreement and can be resolved without interpreting a collective bargaining agreement. See Lingle v. Norge Div. of Magic Chef, Inc., 486 U.S. 399, 412-13, 108 S.Ct. 1877, 100 L.Ed.2d 410 (1988). Section 301 “cannot be read broadly to pre-empt nonnegotiable rights conferred on individual employees as a matter of state law[J * * * [W]hen the meaning of contract terms is not the subject of a dispute, the bare fact that a collective-bargaining agreement will be consulted in the course of state-law litigation plainly does not require the claim to be extinguished.” Livadas v. Bradshaw, 512 U.S. 107, 123-24, 114 S.Ct. 2068, 129 L.Ed.2d 93 (1994). If the claim is based on state law and there is no dispute over the terms of the collective bargaining agreement, section 301 preemption is not mandated. Gregory v. SCIE, LLC, 317 F.3d 1050, 1053-54 (9th Cir.2003). Inasmuch as Kline’s claims are based on state law and there is no dispute as to the contract terms, the claims are not preempted by 29 U.S.C. § 185(a).
rv.
Kline asserts that the exclusion of legal counsel from the early stages of dispute resolution under the Fund’s ADR process results in the diminution of benefits, in violation of Minn.Stat. § 176.1812, subd. 4 (providing, “Nothing in this section shall allow any agreement that diminishes an employee’s entitlement to benefits as otherwise set forth in this chapter.”). He claims that legal representation in the early stages of the process is essential and that, when compared with the statutory system that protects injured workers from excessive charges and at the same time ensures that counsel receive adequate compensation for their services, the exclusion of legal counsel is a diminished benefit. He also asserts a due process right to counsel.
From the time injured workers’ common law rights to sue their employers were abrogated, the Workers’ Compensation Act has contemplated the right to be represented by counsel in proceedings to secure compensation. See Minn.Stat. § 8201 (1913) (attorney fees as lien on compensation). The workers’ compensation system is inherently adversarial. Moseowitz & Van Bourg, supra at 36. There is a claimant and a defendant (the employer and insurance carrier). Id. The workers’ compensation judge “must determine if the defendant must pay compensation to the claimant.” Id. Common issues involved in a typical workers’ compensation claim include: (1) whether the injury arose out of and in the course of employment; (2) whether there is, in fact, an injury; (3) whether a preexisting condition was aggravated or exacerbated by the employment; *25(4) the nature, extent, and cessation of a temporary total disability; (5) the nature and extent of a permanent partial disability; (6) questions related to rehabilitation and medical treatment; and (7) questions related to death and dependency benefits. Id. at 12-13. The stated aim of the ADR process involved in this case is to change “the culture of workers’ compensation claims administration from one of adversaries and lengthy litigation to a culture of fairness and quick resolution of the claim.” Fund Executive Summary at 1 (rev. May 2000). But a “quick glance” at “just the most common issues litigated in a workers’ compensation claim * * * clearly demonstrates that the workers’ compensation system can be extremely adversarial.” Moscowitz & Van Bourg, supra at 13.
Also, over the years, workers’ compensation has become more complex, having gone through major reforms and leading to the need to consult one set of laws for injuries occurring before December 31, 1983, another set of laws for injuries occurring between January 1, 1984, and September 30, 1995, and a third set of laws for injuries occurring after October 1, 1995. See Act of June 7, 1983, ch. 290, § 176, 1983 Minn. Laws 1405; Act of May 25, 1995, ch. 231, art. 1, § 37, 1995 Minn. Laws 1999.10 Ascertaining which law applies also can be problematic in that “ ‘the substantive rights of [the] employer and [the] employee are fixed * ⅜ * by the law in effect on the date of the controlling event.’” Busch v. Advanced Maint., 659 N.W.2d 772, 776 (2003) (alterations in orig*26inal) (quoting Joyce, 412 N.W.2d at 307). Normally, it is the date of the most recent occurrence of a compensable personal injury that is the controlling event, but “[i]f a period of disability is precipitated by a mere temporary aggravation of a prior injury, * * * ‘as opposed to a new, separate injury, the original injury continues to be the controlling event and the employee’s rights are governed by the [law] in effect on the date of the original injury.’ ” Id. at 776-77 (quoting Joyce, 412 N.W.2d at 307-08).
Respondents and amicus curiae assert that the absence of legal counsel at the early stages of the ADR process does not diminish an employee’s ehtitlement to benefits and, in fact, the employee in this case retained legal counsel before the facilitation meeting. But, as Kline notes, legal counsel cannot aid in the presentation of evidence and argument at the facilitation stage unless all parties agree and can only indirectly participate at the mediation phase. An injured worker is immediately disadvantaged, particularly when a trained insurance claims adjuster or an employer with legal training is allowed to participate in a facilitation that can lead to the termination of benefits. “The removal of legal representation for an injured employee only exacerbates the already present unequal bargaining power of the employee.” Starr, swpra at 514.
Moreover, there is no provision for attorney fees for services rendered in connection with a facilitation. Fees are only allowable in connection with a mediation that results in settlement. Fund R. 5.4. Following arbitration, the arbitrator determines fees. Id. at R. 6.3. In the workers’ compensation system, attorney fees are regulated by statute. Minn.Stat. § 176.081 (2002). The collection of fees in excess of those authorized by statute is serious misconduct warranting discipline. Strande v. Woman’s Club of Minneapolis, 518 N.W.2d 555, 556 (Minn.1994). In a “privatized system,” the collection of fees “would be outside the scope of the workers’ compensation system.” Moscowitz & Van Bourg, supra at 45.11 While an injured employee is allowed to consult with legal counsel in the early stages of the process, this consultation might be at the employee’s own expense. An injured employee might be reluctant to retain a workers’ compensation attorney until such time as the attorney could participate in the process, and a workers’ compensation attorney might be reluctant to furnish legal services when that attorney’s ability to fully represent the client is diminished by the system.
It seems fairly evident that legal representation in the early stages of dispute resolution in workers’ compensation matters is vital. The statutory scheme endeavors to accommodate the public policy that injured employees have access to representation by legal counsel knowledgeable in the intricacies of the legal and medical questions necessary to structure the employee’s case. See Mack v. City of Minneapolis, 333 N.W.2d 744, 749 (Minn.1983) (stating that the statutory scheme is aimed at “(1) protecting compensation claimants from excessive legal fees which might otherwise severely deplete funds badly needed by the employee and his or her dependents; and (2) insuring that attorneys who represent claimants will receive reasonable compensation, so that competent counsel will be available to injured employees.”). *27But the exclusion of legal representation and passing the costs of legal representation onto the injured worker serve only to dissuade injured employees from seeking competent legal help and to discourage attorneys from furnishing appropriate services, resulting in diminution of an injured employee’s entitlement to benefits as otherwise set out in the statutory scheme.12 We therefore hold that the exclusion of legal counsel in the early stages of the ADR process contained in the Fund’s rules violates Minn.Stat. § 176.1812, subd. 4, and that Kline is entitled to a new arbitration. In light of our disposition, we need not reach the constitutional claim.
V.
Kline also claims bias and conflict of interest in the arbitration. Kathy Berg, manager/owner of Berg Drywall and a management trustee of the Fund, attended the arbitration. Kline contends that Berg’s dual roles as party and trustee created an inherent conflict of interest, or at least the appearance of a conflict of interest. In rejecting this claim, the WCCA, on the record presented here, saw no inherent bias and conflict of interest in the selection of the arbitrator or approval of his compensation. We are satisfied the WCCA properly decided the issue.
Affirmed as modified.
Employee is awarded $1,600 in attorney fees.
. The Rules and Regulations of the Union Construction Crafts Workers' Compensation Fund established a list of health-care providers to provide “peer review, chart reviews, second opinion exams, or dispute resolution exams.” Fund R. 9.1.
. Following his injury, Kline returned to work for Berg Drywall in a light-duty capacity. Based on the report of Dr. Johnson authorizing a return to work without restrictions, Berg Drywall "dissolved” the light-duty position.
. In the “limited” number of contracts in existence in early 1995, "few 'disputes' ” went beyond the initial ombudsman stage, an indication, of either how well the program was "working in avoiding disputes, or a sign of how the program [was] failing uninformed *19injured workers.” Moscowitz & Van Bourg, supra at 4.
. The Chamber of Commerce lobbied for opt-out legislation on behalf of contractors, and the unions "may have felt this was a good way to keep the cost of hiring union labor competitive with non-union workers." Starr, supra at 514.
. Minnesota Statutes § 176.1812, subdivision 1, provides:
Upon appropriate filing, the commissioner, compensation judge, workers’ compensation court of appeals, and courts shall recognize as valid and binding a provision in a collective bargaining agreement between a qualified employer or qualified groups of employers engaged in construction, construction maintenance, and related activities and the certified and exclusive representative of its employees to establish certain obligations and procedures relating to workers' compensation. For purposes of this section, "qualified employer” means any self-insured employer, any employer, through itself or any affiliate as defined in section 60D.15, subdivision 2, who is responsible for the first $100,000 or more of any claim, or a private employer developing or projecting an annual workers’ compensation premium, in Minnesota, of $250,000 or more. For purposes of this section, a “qualified group of employers” means a group of private employers engaged in workers’ compensation group self-insurance complying with chapter 79A, or a group of private employers who purchase workers’ compensation insurance as a group, which develops or projects annual workers' compensation insurance premiums of $2,000,000 or more. This agreement must be limited to, but need not include, all of the following:
(a) an alternative dispute resolution system to supplement, modify, or replace the procedural or dispute resolution provisions of this chapter. The system may include mediation, arbitration, or other dispute resolution proceedings, the results of which may be final and binding upon the parties. A system of arbitration shall provide that the decision of the arbiter is subject to review either by the workers’ compensation court of appeals in the same manner as an award or order of a compensation judge or, in lieu of review by the workers' compensation court of appeals, by the office of administrative hearings, by the district court, by the Minnesota court of appeals, or by the supreme court in the same manner as the workers’ compensation court of appeals and may provide that any arbiter's award disapproved by a court be referred back to the arbiter for reconsideration and possible modification;
(b) an agreed list of providers of medical treatment that may be the exclusive source of all medical and related treatment provided under this chapter which need not be certified under section 176.1351;
(c) the use of a limited list of impartial physicians to conduct independent medical examinations;
(d) the creation of a light duty, modified job, or return to work program;
(e) the use of a limited list of individuals and companies for the establishment of vocational rehabilitation or retraining programs which list is not subject to the requirements of section 176.102;
(f) the establishment of safety committees and safety procedures; or
(g) the adoption of a 24-hour health care coverage plan if a 24-hour plan pilot project is authorized by law, according to the terms and conditions authorized by that law.
. Minnesota Statutes § 176.1812, subdivision 2, provides:
A copy of the agreement and the approximate number of employees who will be covered under it must be filed with the commissioner. Within 21 days of receipt of an agreement, the commissioner shall - review the agreement for compliance with this section and the benefit provisions of this chapter and notify the parties of any additional information required or any recommended modification that would bring the agreement into compliance. Upon receipt of any requested information or modification, the commissioner must notify the parties within 21 days whether the agreement is in compliance with this section and the benefit provisions of this chapter.
In order for any agreement to remain in effect, it must provide for a timely and accurate method of reporting to the commissioner necessary information regarding service cost and utilization to enable the commissioner to annually report to the legislature. The information provided to the commissioner must include aggregate data on the:
(i) person hours and payroll covered by agreements filed;
(ii) number of claims filed;
(iii) average cost per claim;
(iv) number of litigated claims, including the number of claims submitted to arbitration, the workers' compensation court of appeals, the office of administrative hearings, the district court, the Minnesota court of appeals or the supreme court;
(v) number of contested claims resolved prior to arbitration;
(vi) projected incurred costs and actual costs of claims;
(vii) employer’s safety history;
(viii) number of workers participating in vocational rehabilitation; and
(ix) number of workers participating in light-duty programs.
. Minnesota Statutes § 176.1812, subdivision 4, provides:
Nothing in this section shall allow any agreement that diminishes an employee’s entitlement to benefits as otherwise set forth in this chapter. For the purposes of this section, the procedural rights and dispute resolution agreements under subdivision 1, clauses (a) to (g), are not agreements which diminish an employee's entitlement to benefits. Any agreement that diminishes an employee's entitlement to benefits as set forth in this chapter is null and void.
. The dissent acknowledges that judicial review cannot be precluded, but asserts that judicial review is available under the Minnesota Uniform Arbitration Act. Neither respondents’ employer and insurer nor the amicus curiae make that claim. Furthermore, when read literally, Minn.Stat. § 176.1812, subd. 1(a), authorizes review “in the same manner as the workers' compensation court of appeals” in the district court or court of appeals; but having transferred adjudication of compensation claims to the Department of Labor and Industry in 1921, "it is rather doubtful the legislature intended to march these awards through the general jurisdiction court system.” See Peterson v. O.R. Anderberg Const., 586 N.W.2d 269, 272 n. 3 (Minn.1998).
. Because an amicus must accept the case before the court with the issues made by the parties, an amicus ordinarily cannot inject new issues into a case that have not been presented by the parties. But a court may, at times, consider an issue raised only by an amicus, particularly if the issue is one the court could raise sua sponte. E.g., Teague v. *24Lane, 489 U.S. 288, 300, 109 S.Ct. 1060, 103 L.Ed.2d 334 (1989) (considering retroactivity claim raised only by amicus).
. For example, "[f]or injury producing temporary total disability, the compensation is 66-2/3 percent of the weekly wage at the time of injury.” Minn.Stat. § 176.101, subd. 1(a) (2002). For injuries occurring on or after January 1, 1984, temporary total disability compensation ceases 90 days after the worker attains maximum medical improvement or 90 days after the end of an approved retraining program, whichever is later. Act of June 7, 1983, ch. 290, § 48, 1983 Minn. Laws 1341 (codified at Minn.Stat. § 176.101, subd. 3e (1994)). During the 90-day period, if the employer furnishes or procures work that satisfies statutory criteria, permanent partial disability compensation is payable as impairment compensation. If no work satisfying statutory criteria is found for the employee, compensation for permanent partial disability is payable as economic recovery compensation that may be significantly higher than impairment compensation. Act of June 7, 1983, ch. 290, §§ 44-45, 59, 1983 Minn. Laws 1339-40, 1346 (codified at Minn.Stat. § 176.101, subds. 3a, 3b, 3p (1994)).
For injuries occurring on or after October 1, 1995, temporary total disability compensation still ceases 90 days after maximum medical improvement, but job placement is not an issue because the two-tier system for the delivery of permanent partial disability benefits has been eliminated, making compensation for permanent partial disability payable under one schedule. Act of May 25, 1995, ch. 231, art. 1, §§ 17, 19, 1995 Minn. Laws 1988-89 (codified at Minn.Stat. § 176.101 subds. l(j) and 2a (2002)). There are also several other cessation provisions. Id. at 1987 (codified at Minn.Stat. § 176.101, subd. 1(e) (2002)) (providing that temporary total benefits cease when the employee returns to work); id. (codified at Minn.Stat. § 176.101, subd. 1(f) (2002)) (providing that temporary total benefits cease when the employee withdraws from the labor market); id. at 1987-88 (codified at Minn.Stat. § 176.101, subd. 1(g) (2002)) (providing that temporary total benefits cease when the employee fails to make a diligent search for work); id. at 1988 (codified at Minn.Stat. § 176.101, subd. 1(h) (2002)) (providing that temporary total benefits cease when the employee has been released to work without restrictions); id. (codified at Minn. Stat. § 176.101, subd. l(i) (2002)) (providing that temporary total benefits cease when the employee refuses an offer of work). There is an absolute limitation of 104 weeks of temporary total disability benefits. Id. (codified at Minn.Stat. § 176.101, subd. l(k) (1996)). The 104-week limitation does not apply to temporary total disability that is paid during an approved retraining plan. Id. The weeks before and after the retraining plan do, however, count against the 104-week limitation. Id.
. Amicus points out that the ADR process provides for "the availability of counsel, paid by the Fund, to review proposed settlement agreements.” If mediation results in a settlement agreement and the employee does not have legal counsel, the Fund will pay $500 to an attorney of the employee’s choice to review the settlement. Fund R. 5.4.
. The dissent suggests that the opt-out legislation was aimed at reducing the costs of litigation, asserting that the presence of attorneys adds 25 percent to those costs; but the impact of attorney involvement on the costs of benefits claims was merely "a belief among industry, and many legislatures." Starr, supra at 494. Claimants’ attorneys have been the major target of recent reforms to the benefit process, resulting in a drop in legal representation for claimants at contested case hearings, while the insurers’ legal representation remained unchanged. See Martha T. McCluskey, The Illusion of Efficiency in Workers’ Compensation Reform, 50 Rutgers L.Rev. 657, 861-62 (1998).