SCOLNIK, Justice.
Bath Iron Works Corporation (BIW) and the Commercial Union Insurance Company appeal from a decision of the Appellate Division of the Workers' Compensation Commission affirming the commissioner’s decision ordering, inter alia, BIW to pay Bruce Bouford benefits for fifty percent permanent impairment for loss of use of his back. BIW contends that the commissioner erred in ruling that it was not entitled to credit against the permanent impairment award federal compensation benefits paid to Bouford. We affirm the decision.
The facts are undisputed. Bouford sustained an injury to his lower back and legs arising out of and in the course of his employment by BIW on August 16, 1978. As a result of that injury, Bouford received benefits voluntarily under the federal Longshore and Harbor Workers’ Compensation Act (LHWCA), 33 U.S.C. §§ 901-950 (1986). Specifically, he received benefits for temporary total disability from August 18, 1978 to February 4, 1980, and for permanent partial disability thereafter. Because BIW hired Bouford after he had suffered a back-related injury in 1975, its liability for Bouford’s second job-related injury was limited to two years. As a result, after February 4, 1982, Bouford’s permanent partial disability benefits have been paid out of a special fund established pursuant to 33 U.S.C. §§ 908(f), 944.
[472]*472On January 30, 1984, based on the 1978 injury, Bouford filed two petitions under Maine’s Workers’ Compensation Act (WCA), 39 M.R.S.A. §§ 1-195 (1980 & Supp.1985-1986), one for an award of compensation, the other for a determination of the extent of permanent impairment. The commissioner granted both petitions. He found Bouford to have been totally incapacitated from August 18, 1978, to March 19, 1979, and twenty-five percent partially incapacitated for an open-ended period beginning March 19, 1979. BIW was further ordered to pay Bouford fifty percent permanent impairment for the loss of the use of his back, a lump sum in the amount of $16,053. Since Bouford had received benefits under the LHWCA for the 1978 injury, the commissioner allowed BIW to credit the federal compensation benefits paid during the specified periods against the Maine compensation awards. However, he did not extend this offset to the permanent impairment award because the LHWCA did not contain a similar provision compensating Bouford for the loss of the use of his back. After the Appellate Division affirmed the commissioner’s decision, we granted BIW’s petition for review.
The LHWCA is a federal workers’ compensation statute designed in part to provide compensation for injuries sustained by persons engaged in maritime employment. See 33 U.S.C. § 902(3). The Act, however, does not prevent a state from applying its workers’ compensation scheme to land-based injuries that are also covered by the LHWCA. In Sun Ship, Inc. v. Pennsylvania, 447 U.S. 715, 100 S.Ct. 2432, 65 L.Ed.2d 458 (1980), the United States Supreme Court declared that concurrent jurisdiction for federal and state compensation acts was consistent with ensuring that any award a marine worker receives meets the minimum benefits under the LHWCA regardless of whether he was injured on land or over water. The Court stated:
[I]f state remedial schemes are more generous than federal law, concurrent jurisdiction could result in more favorable awards for workers’ injuries than under an exclusively federal compensation system. But we find no evidence that Congress was concerned about a disparity between adequate federal benefits and superior state benefits.
Id. at 724, 100 S.Ct. at 2438 (emphasis in original) (footnote omitted). To be sure, under concurrent jurisdiction, an employee is prevented from receiving a double recovery of compensation benefits. Id. at 725 n. 8, 100 S.Ct. at 2439 n. 8. See also Stockford v. Bath Iron Works Corp., 482 A.2d 843, 845 (Me.1984). BIW argues that any award under the Maine Act necessarily constitutes a double recovery if it is paid for the same injury. We disagree. An examination of the LHWCA and Maine’s Act makes clear that the permanent impairment benefits awarded to Bouford in this case are separate and distinct from the benefits he received under the LHWCA.
Bouford received benefits for permanent partial disability as a result of his 1978 injury under the LHWCA. 33 U.S.C. § 908(c). BIW contends that this award is the equivalent of an award for permanent impairment under WCA and therefore it should be entitled to a credit. This contention is without merit. Subsection c of section 908 provides:
In case of disability partial in character but permanent in quality the compensation shall be 66% per centum of the average weekly wages, which shall be in addition to compensation for temporary total disability or temporary partial disability paid in accordance with subsection (b) or subsection (e) of this section....
33 U.S.C. § 908(c).1
Subsection (c) includes a schedule for twenty different specific injuries, primarily loss [473]*473of body members. An employee who suffers an injury listed on the schedule is entitled to a fixed award regardless of the injury’s effect on his earning capacity. See 33 U.S.C. § 908(c)(1H20). An additional subparagraph, 33 U.S.C. § 908(c)(21), applies to all injuries not scheduled. Because a back injury is not scheduled, Bouford’s permanent partial disability benefits were paid pursuant to subparagraph (21), which provides:
Other cases: In all other cases in the class of disability, the compensation shall be 66% per centum of the difference between the average weekly wages of the employee and the employee’s wage-earning capacity thereafter in the same employment or otherwise, payable during the continuance of partial disability.
Unlike the scheduled provisions, permanent partial disability payments under subpara-graph 21 are designed to compensate an employee for his economic loss owing to his injury. Benefits are based on actual loss of earning capacity, and are measured by the actual impairment of' the employee’s wage-earning capacity caused by his injury. As the Court explained in Potomac Electric Power Co. v. Director, Office of Workers’ Compensation Programs, 449 U.S. 268, 282-83, 101 S.Ct. 509, 516-17, 66 L.Ed.2d 446 (1980):
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SCOLNIK, Justice.
Bath Iron Works Corporation (BIW) and the Commercial Union Insurance Company appeal from a decision of the Appellate Division of the Workers' Compensation Commission affirming the commissioner’s decision ordering, inter alia, BIW to pay Bruce Bouford benefits for fifty percent permanent impairment for loss of use of his back. BIW contends that the commissioner erred in ruling that it was not entitled to credit against the permanent impairment award federal compensation benefits paid to Bouford. We affirm the decision.
The facts are undisputed. Bouford sustained an injury to his lower back and legs arising out of and in the course of his employment by BIW on August 16, 1978. As a result of that injury, Bouford received benefits voluntarily under the federal Longshore and Harbor Workers’ Compensation Act (LHWCA), 33 U.S.C. §§ 901-950 (1986). Specifically, he received benefits for temporary total disability from August 18, 1978 to February 4, 1980, and for permanent partial disability thereafter. Because BIW hired Bouford after he had suffered a back-related injury in 1975, its liability for Bouford’s second job-related injury was limited to two years. As a result, after February 4, 1982, Bouford’s permanent partial disability benefits have been paid out of a special fund established pursuant to 33 U.S.C. §§ 908(f), 944.
[472]*472On January 30, 1984, based on the 1978 injury, Bouford filed two petitions under Maine’s Workers’ Compensation Act (WCA), 39 M.R.S.A. §§ 1-195 (1980 & Supp.1985-1986), one for an award of compensation, the other for a determination of the extent of permanent impairment. The commissioner granted both petitions. He found Bouford to have been totally incapacitated from August 18, 1978, to March 19, 1979, and twenty-five percent partially incapacitated for an open-ended period beginning March 19, 1979. BIW was further ordered to pay Bouford fifty percent permanent impairment for the loss of the use of his back, a lump sum in the amount of $16,053. Since Bouford had received benefits under the LHWCA for the 1978 injury, the commissioner allowed BIW to credit the federal compensation benefits paid during the specified periods against the Maine compensation awards. However, he did not extend this offset to the permanent impairment award because the LHWCA did not contain a similar provision compensating Bouford for the loss of the use of his back. After the Appellate Division affirmed the commissioner’s decision, we granted BIW’s petition for review.
The LHWCA is a federal workers’ compensation statute designed in part to provide compensation for injuries sustained by persons engaged in maritime employment. See 33 U.S.C. § 902(3). The Act, however, does not prevent a state from applying its workers’ compensation scheme to land-based injuries that are also covered by the LHWCA. In Sun Ship, Inc. v. Pennsylvania, 447 U.S. 715, 100 S.Ct. 2432, 65 L.Ed.2d 458 (1980), the United States Supreme Court declared that concurrent jurisdiction for federal and state compensation acts was consistent with ensuring that any award a marine worker receives meets the minimum benefits under the LHWCA regardless of whether he was injured on land or over water. The Court stated:
[I]f state remedial schemes are more generous than federal law, concurrent jurisdiction could result in more favorable awards for workers’ injuries than under an exclusively federal compensation system. But we find no evidence that Congress was concerned about a disparity between adequate federal benefits and superior state benefits.
Id. at 724, 100 S.Ct. at 2438 (emphasis in original) (footnote omitted). To be sure, under concurrent jurisdiction, an employee is prevented from receiving a double recovery of compensation benefits. Id. at 725 n. 8, 100 S.Ct. at 2439 n. 8. See also Stockford v. Bath Iron Works Corp., 482 A.2d 843, 845 (Me.1984). BIW argues that any award under the Maine Act necessarily constitutes a double recovery if it is paid for the same injury. We disagree. An examination of the LHWCA and Maine’s Act makes clear that the permanent impairment benefits awarded to Bouford in this case are separate and distinct from the benefits he received under the LHWCA.
Bouford received benefits for permanent partial disability as a result of his 1978 injury under the LHWCA. 33 U.S.C. § 908(c). BIW contends that this award is the equivalent of an award for permanent impairment under WCA and therefore it should be entitled to a credit. This contention is without merit. Subsection c of section 908 provides:
In case of disability partial in character but permanent in quality the compensation shall be 66% per centum of the average weekly wages, which shall be in addition to compensation for temporary total disability or temporary partial disability paid in accordance with subsection (b) or subsection (e) of this section....
33 U.S.C. § 908(c).1
Subsection (c) includes a schedule for twenty different specific injuries, primarily loss [473]*473of body members. An employee who suffers an injury listed on the schedule is entitled to a fixed award regardless of the injury’s effect on his earning capacity. See 33 U.S.C. § 908(c)(1H20). An additional subparagraph, 33 U.S.C. § 908(c)(21), applies to all injuries not scheduled. Because a back injury is not scheduled, Bouford’s permanent partial disability benefits were paid pursuant to subparagraph (21), which provides:
Other cases: In all other cases in the class of disability, the compensation shall be 66% per centum of the difference between the average weekly wages of the employee and the employee’s wage-earning capacity thereafter in the same employment or otherwise, payable during the continuance of partial disability.
Unlike the scheduled provisions, permanent partial disability payments under subpara-graph 21 are designed to compensate an employee for his economic loss owing to his injury. Benefits are based on actual loss of earning capacity, and are measured by the actual impairment of' the employee’s wage-earning capacity caused by his injury. As the Court explained in Potomac Electric Power Co. v. Director, Office of Workers’ Compensation Programs, 449 U.S. 268, 282-83, 101 S.Ct. 509, 516-17, 66 L.Ed.2d 446 (1980):
Unless an injury results in a scheduled disability, the employee’s compensation is dependent upon proving a loss of wage-earning capacity; in contrast, even though a scheduled injury may have no actual effect on an employee’s capacity to perform a particular job or to maintain a prior level of income, compensation in the schedule amount must be paid.
Maine’s Act is similar to the LHWCA in that it identifies several categories of disability and separately prescribes a method of compensation for each. It provides compensation for total incapacity, 39 M.R.S.A. § 54; partial incapacity, 39 M.R.S.A. § 55; and permanent impairment, 39 M.R.S.A. §§ 56, 56-A. Section 56, like 33 U.S.C. § 908(c)(l-20), contains a schedule of specific injuries, primarily loss of body members or other incurable conditions, for which a specific amount of compensation is paid to an employee. These payments are also made regardless of loss of earning capacity. For injuries not scheduled, such as Bouford’s 1978 back injury, section 56-A provides:
In addition to the benefits provided for in sections 54 and 55, when an employee sustains an injury which is included in the following schedule, the incapacity in each case shall be deemed to be total for the period specified and the injured employee shall receive a lump sum payment for said injury, which shall be determined by multiplying the amount to which he would be entitled weekly for total incapacity as determined under section 54 by the period of presumed total incapacity set forth in this section. The specific periods of presumed total incapacity because of injuries specified in this section shall be as follows:
Total loss of function of
Back: 200 weeks
3a M.R.S.A. § 56-A (emphasis added).2
Unlike the permanent partial disability benefits Bouford received under the LHWCA intended to compensate him for his loss of earning capacity, permanent impairment benefits awarded pursuant to section 56-A are based exclusively on loss of function of a bodily part. See, e.g., Campbell v. Bates Fabrics, Inc., 422 A.2d 1014, [474]*4741015 (Me.1980) (permanent impairment benefits “are not dependent upon wage loss but are paid even though the employee may have sustained no actual diminution of wages”). The state remedy has no relationship to loss of earning capacity. “ ‘Impairment benefits are justified because of losses an impaired worker experiences that are unrelated to lost remuneration. The impairment may, for example, have lifetime effects on the personality and normal activities of the worker.’ ” Id. at 1016 (quoting Report of the National Commission on State Workmen’s Compensation Laws 69 (1972)). Since the permanent impairment award in this case provides compensation for the physical consequences of a work-related injury, it is not duplicative of a permanent partial disability awarded to Bou-ford under LHWCA. Instead, it is a superior benefit that is distinct from those available under the LHWCA. Accordingly, we find no basis to conclude that Bouford received a double recovery in this case. Absent an award under the LHWCA compensating Bouford for the permanent loss of function of his back, BIW is not entitled to an offset against the permanent impairment award.
We reject BIW’s contention that public policy nevertheless requires that there be an offset in this case. We are mindful of the fact that Congress has amended the LHWCA to require that “amounts paid to an employee for the same injury, disability, or death for which benefits are claimed under this chapter pursuant to any other workers’ compensation law ... shall be credited against any liability imposed by this chapter.” 33 U.S.C. § 903(e) (applicable to claims pending and filed after Sept. 28, 1984). That Congress requires that an employer be given credit for any payments made under a state act does not require that any payments made under the LHWCA be necessarily offset when benefits are paid under Maine’s Act. Under concurrent jurisdiction, states are free to provide for more favorable benefits. When those superior benefits provide compensation that is separate and distinct from the compensation awarded under the federal act, we find no public policy supporting an offset. Since the permanent impairment award in this case is intended solely to compensate an injured employee for a physical loss of bodily function, it would defeat the purpose of that award if it were offset against benefits paid for loss of earning capacity. In short, public policy does not support BIW’s contention that Bouford’s permanent impairment award be offset against his award for permanent partial disability under the LHWCA. Accordingly, we affirm the commissioner’s decision denying BIW the offset.
The entry is:
Decision of the Appellate Division of the Workers’ Compensation Commission affirmed.
It is further ordered that the employer pay to the employee an allowance for counsel fees in the amount of $550, together with his reasonable out-of-pocket expenses for this appeal. ■
NICHOLS, VIOLETTE, and GLASS-MAN, JJ., concurring.