Opinion for the court filed by Chief Judge J. SKELLY WRIGHT.
Dissenting opinion filed by TAMM, Circuit Judge.
J. SKELLY WRIGHT, Chief Judge:
These cases arise on petitions for review of an order of the Benefits Review Board (Board).1 The Board upheld a claim by petitioner James A. Riley, III (Riley) for payments under the District of Columbia Workmen’s Compensation Law,2 in addition to those he had already received under the Virginia statute.3 Riley’s employer, Eureka Van & Storage Company (Eureka), now defunct, and James A. Riley, Sr. (Riley, Sr.), the president and sole shareholder of Eureka and claimant Riley’s father, were held liable for the payments. To the extent that Eureka and Riley, Sr. could not satisfy the judgment, the claim would be paid from a special fund created by statute.4 The Board held that Eureka’s insurance carrier, Maryland Casualty Company, was not liable [244]*244because its policy covered only claims made by Eureka employees under Virginia law. The Board also held that National Van Lines, Inc. and its insurer, Transport Indemnity Company, were not liable to Riley because National Van Lines could not be considered a general contractor for purposes of the contractor liability provisions of the District of Columbia Act. Riley v. Eureka Van & Storage Co., BRB Nos. 76-259, 259A, 259B, 7 B.R.B.S. 445 (Jan. 23, 1978).5
Petitioner Riley urges this court to reverse the decision of the Board with regard to the liability of Maryland Casualty Company, National Van Lines, and Transport Indemnity Company. He is joined in his petition by the Director of the Office of Workers’ Compensation Programs (OWCP) for the United States Department of Labor,6 who challenges only the portion of the order pertaining to National Van Lines and its insurer.
I. BACKGROUND
Claimant Riley was severely injured in a highway accident on January 7, 1966 in New York State. He is permanently totally disabled, as a quadriplegic. The accident occurred during the regular course of Riley’s employment as a driver for Eureka Van & Storage Company, which was serving as an agent for National Van Lines in the haulage of goods in interstate commerce. On the fateful trip Riley was driving a truck marked with the colors and insignia of National Van Lines, under the direction of a dispatcher for National Van Lines. He had picked up goods in the District of Columbia, Virginia, and Maryland to be delivered in New York, Connecticut, and New Jersey. The goods originating in the District of Columbia had been delivered in New York City on the day before the accident.7
While Riley was hospitalized Riley, Sr. filed an “Employer’s First Report of Accident” with the Industrial Commission of the State of Virginia on February 22,1966. No report was made to the District of Columbia district office of the Department of Labor’s Bureau of Employees’ Compensation (now OWCP) with respect to Riley’s accident or claim until 1972.8 On March 8, 1966 Riley, Sr., on behalf of his son, executed an agreement with Eureka’s insurer, Maryland Casualty, for benefits to be paid to claimant Riley at a rate of $39.00 per week for 400 weeks ($15,600 total), plus all hospital and medical bills for two years following the accident. The Virginia Industrial Commission approved the settlement, which was the maximum award permitted under state law. Notice of Award of the Virginia Industrial Commission, March 30, 1966.9
On May 2, 1972 Riley filed a claim with the District of Columbia district office for additional benefits from Eureka and Maryland Casualty under the District of Columbia statute.10 No written claim was filed against National Van Lines and Transport Indemnity, but they were involved in all stages of the proceeding.11
[245]*245The Administrative Law Judge (ALJ) assigned to the claim dismissed it on two grounds: (1) that the District of Columbia lacked jurisdiction of the claim because of the absence of a substantial and legitimate interest in claimant’s employment or accident, and (2) that the claim was barred by the statute of limitations.12 The Benefits Review Board, in a split decision, reversed on both grounds and remanded.13 On remand the ALJ reluctantly14 found Eureka and its president, Riley, Sr.,15 liable for payments under the District of Columbia law. He further held that Maryland Casualty had fully satisfied its obligations, which were limited to paying claims arising under Virginia law. Finally, he concluded that Eureka was a subcontractor for National Van Lines, and thus that National and its insurer, Transport Indemnity, were jointly and severally liable to the claimant.16
On appeal the Benefits Review Board affirmed the ALJ’s decision holding Eureka and Riley, Sr. liable for additional payments and Maryland Casualty not liable. The Board reversed on the issue of the liability of National Van Lines and Transport Indemnity and held that, in the event that Eureka and Riley, Sr. were unable to provide the payments, Riley would be compensated from a special fund set up under the Longshoremen’s and Harbor Workers’ Compensation Act (LHWCA).17
Claimant Riley and his father have at all relevant times been residents of Virginia.18 Eureka was a small moving and storage company headquartered in Fairfax County, Virginia and serving the metropolitan Washington, D. C. area. Eureka was covered for workmen’s compensation claims by Maryland Casualty Company. The policy expressly limited coverage to claims arising under the law of Virginia. In addition to its Washington area business, Eureka served as an agent for National Van Lines. Pursuant to an “Agency Agreement” with National, Eureka operated trucks in interstate commerce under the Interstate Commerce Commission (ICC) license number of National, displaying the colors and emblems of National. National remained responsible to interstate shippers for carriage under the agreement. Shippers paid National Van Lines directly. National in turn gave instructions to Eureka drivers, exercised some control over the hiring and training of Eureka drivers involved in National Van Lines haulage, and paid Eureka directly for its services. A clause of the agreement required that Eureka furnish workmen’s compensation insurance for the Eureka employees.19
Before reaching the merits of the liability of Maryland Casualty, National Van Lines, and Transport Indemnity, it is necessary to resolve a question of the jurisdiction of the District of Columbia over this claim.20
[246]*246II. JURISDICTIONAL ISSUES
A
The District of Columbia Workmen’s Compensation Act, 36 D.C.Code § 501 (1973), is of widest permissible extraterritorial application. It incorporates the substantive and procedural features of the LHWCA, 33 U.S.C. §§ 901-950 (1976), in cases of injury or death of “an employee of an employer carrying on any employment in the District of Columbia, irrespective of the place where the injury or death occurs.” The reach of the statute has been limited in accordance with the dictates of the full faith and credit clause of the United States Constitution, U.S.Const., Art. IV, § 1, to cases where there is “some substantial connection between the District and the particular employee-employer relationship * Cardillo v. Liberty Mutual Ins. Co., 330 U.S. 469, 476, 67 S.Ct. 801, 806, 91 L.Ed. 1028 (1947). So long as such a “substantial connection” exists, the District of Columbia Act applies and satisfies constitutional strictures. Id. The principal jurisdictional issue in this case is whether such a “substantial connection” between Riley’s employment relation and the District of Columbia exists.
On the facts, the issue is close. Many of the common indicia of substantial connection,21 for example, residence of the employee, headquarters of the employer, place of making the employment contract, are absent. For two reasons, however, the usual indicia are of little relevance to this case. First, Riley’s residence and Eureka’s headquarters were located in a metropolitan area encompassing the District of Columbia and parts of Virginia and Maryland. For most practical purposes, it makes little difference to the parties or to the jurisdictions, in the context of the policies behind the Act, precisely where the home or headquarters is. The most significant geographical division is the metropolitan Washington area. Second, the interstate nature of Eureka’s business makes it difficult to pin the employment relation to a specific place. Even Eureka’s “local” haulage involved three jurisdictions; under the banner of National Van Lines, Eureka’s drivers penetrated many of the states of the Union. Riley, for example, suffered his injury in New York, while under the direction of a National Van Lines dispatcher in Illinois. Given these two factors, the proper territorial jurisdiction over the case is anything but obvious.
[247]*247In making our judgment on this petition our discretion to evaluate the jurisdictional facts is doubly limited. First, in our function as a reviewing court we may reverse the decision of the Board only if that decision is unsupported by substantial evidence or inconsistent with applicable law. Cardillo v. Liberty Mutual Ins. Co., supra, 330 U.S. at 474, 67 S.Ct. 801; Marcus v. Director, Office of Workers’ Comp. Programs, 179 U.S.App.D.C. 89, 94-95, 548 F.2d 1044, 1049-1050 (1976).22
Second, we are bound by the congressionally-mandated “presumption of jurisdiction.” 23 The LHWCA provides:
In any proceeding for the enforcement of a claim for compensation under this chapter it shall be presumed, in the absence of substantial evidence to the contrary—
(a) That the claim comes within the provisions of this chapter.
33 U.S.C. § 920(a) (1976). As the Supreme Court has observed, this presumption of jurisdiction “applies with equal force to proceedings under the District of Columbia Act.” Cardillo v. Liberty Mutual Ins. Co., supra, 330 U.S. at 474, 67 S.Ct. at 805. Moreover, the workmen’s compensation statute at issue, being designed to alleviate the suffering of injured workers by spreading the cost of their injuries among the purchasers of their products, must be interpreted liberally in favor of injured claimants. Evening Star Newspaper Co. v. Kemp, 175 U.S.App.D.C. 89, 92, 533 F.2d 1224, 1227 (1976).24
[248]*248In view of these two limitations, it is not surprising that no case has been brought to our attention, nor has one been found, in which this court has reversed the Board (or the deputy commissioner under the pre-1972 system) in favor of a more restrictive view of the extraterritorial reach of the statute. Of course, should the Board seek to extend its jurisdiction to cases involving employment relations without significant connection to the District of Columbia, we shall not hesitate to reverse. This is not such a case.
Eureka’s principal service area was the metropolitan Washington, D. C. area, including northern Virginia, the Maryland suburbs, and the District.25 Although the headquarters of the company were located in Virginia, there is no dispute over the fact that it served many customers in the District and regularly sent its employees into the District in connection with the business.26 Riley himself went into the District on Eureka business on an average of once or twice a week for five years.27 The centering of Eureka’s business in the Washington, D. C. area is especially important, for the customers of the employer ultimately bear the cost of compensation payments. Since Eureka principally serviced Washington and its environs, many District residents could be affected by the outcome of this controversy.28
The interests of a jurisdiction in workmen’s compensation cases are primarily that those employees who work within its boundaries be adequately protected and that those employers who operate extensively within its boundaries be fairly limited in their liability. On this score the District of Columbia has as strong an interest, perhaps stronger, as Virginia or any other state.
It is important to bear in mind that in workmen’s compensation cases, unlike many controversies over choice of law, it is not necessary to identify one jurisdiction with predominant contacts or interests. The test of jurisdiction is not whether the proposed forum has interests greater than those of some other forum, but rather whether the proposed forum’s interest is “legitimate and substantial in itself.” 4 A. Larson, The Law of Workmen’s Compensation § 86.35 at 16-43 (1979).29 So long as a set-off of previous awards in other jurisdictions is made,30 thereby avoiding duplicative recovery, a state or district with substantial contacts to an employment relation may apply its compensation laws without regard to whether another jurisdiction has or could have asserted jurisdiction.31
[249]*249Here the contacts between the District of Columbia and the Eureka-Riley employment relation are substantial enough that this court, faced with the presumption of jurisdiction and with a determination by the Board that the injury is covered by the District of Columbia Act, must conclude that the District of Columbia Act applies.
This case presents a stronger case for application of District of Columbia law than that presented by Director, Office of Workers’ Comp. Programs v. Boughman, 178 U.S. App.D.C. 132, 545 F.2d 210 (1976). In Boughman we adopted the reasoning of the Benefits Review Board finding the compensation claim covered by the District of Columbia compensation statute. Id., 178 U.S. App.D.C. at 133, 545 F.2d at 211. Claimant was a representative of a national labor union, murdered while meeting at a union hall in California with a representative of the local.32 The Board assumed jurisdiction even though the claimant resided in California, was killed in California, and was directed in his work by a regional officer in the western United States. The contacts with the District of Columbia included the employer’s national headquarters, the origin of the claimant’s paychecks and travel reimbursements, the administration of claimant’s pension fund, and (by inference) the place of the making of the employment contract. Claimant also traveled occasionally to the District on business.33 Since [250]*250jurisdiction was upheld in Boughman, we must certainly uphold it here.34
B
Claimant Riley filed his claim in the District of Columbia on May 2, 1972, some six years after his accident occurred.35 The ALJ ruled that his claim was barred by the statute of limitations and also by laches.36 This conclusion was reversed by the Board.37 The Board’s decision is challenged by respondents Maryland Casualty, National Van Lines, and Transport Indemnity.
Under the LHWCA an injured worker must file a claim for compensation within one year after his injury or be barred, subject to certain tolling provisions. 33 U.S.C. § 913 (1976).38 This limitation is mandatory and jurisdictional in nature. Sun Shipbuilding & Dry Dock Co. v. Bowman, 507 F.2d 146, 148 n.3 (3d Cir. 1975); Young v. Hoage, 67 App.D.C. 150, 152, 90 F.2d 395, 397 (1937); see also Pillsbury v. United Engineering Co., 342 U.S. 197, 72 S.Ct. 223, 96 L.Ed. 225 (1952). The parties agree that Riley failed to file his claim in the District until after the one-year period had expired.
But 33 U.S.C. § 930(f) (1976) tolls the statute of limitations during the period that the employer fails to report the injury to the Secretary of Labor.39 In effect, the statute of limitations does not begin to run on an injured employee’s claim under the District of Columbia Act until after the employer has reported the injury to the Secretary. United Brands Co. v. Melson, 594 F.2d 1068, 1070-1073 (5th Cir. 1979); Associated Indemnity Corp. v. Shea, 455 [251]*251F.2d 913, 915 (5th Cir. 1972) (per curiam). Although Eureka reported Riley’s accident to the Virginia Industrial Commission, the company has never made the report to the Secretary and to the compensation district as required by the LHWCA. By the clear import of the statute, the limitations period is tolled.
The respondents, employers and their insurers, however, urge this court to adopt a construction of the tolling provision of Section 930(f) more in line with its “purpose” to encourage reporting of work-related accidents to the proper authorities. They contend that Eureka’s report to the Virginia commission fulfills this purpose. We cannot adopt a reading of the statute that would enable respondents to escape the responsibility placed upon them by the clear words of the statute. Such a reading would not be consistent with the overriding purpose. of the LHWCA, which is to provide adequate compensation to injured workers. See Blackwell Constr. Co. v. Garrell, 352 F.Supp. 192, 196-197 (D.D.C.1972).
Nor can we agree that Riley is barred from pursuing his claim by the doctrine of laches. Even were we to rule that the congressional decision to toll the statute of limitations in cases such as this may be overridden by the exercise of our equity power, this would be a highly inappropriate case for such action. See Peter v. Arrien, 325 F.Supp. 1361, 1366 (E.D.Pa.1971), aff’d, 463 F.2d 252 (3d Cir. 1972). After the accident Riley was in no position to investigate his rights under District of Columbia law; he merely accepted the lesser payments that his father arranged for him under Virginia law. He was not informed of his rights to additional compensation under the District of Columbia law until he consulted a new attorney in March 1972.40 He filed the District of Columbia claim less than two months later. We recognize the hardship to Riley, Sr. and to National Van Lines caused by the intervening demise of Eureka; however, we cannot exercise the equitable powers of the court so as to deny Riley the much-needed benefits to which he is entitled under the law.41
III. LIABILITY OF MARYLAND CASUALTY
The parties have stipulated that the workmen’s compensation insurance policy issued by Maryland Casualty to Eureka stated that it was limited to compensation claims arising under Virginia law.42 The ALJ therefore decided that Eureka was an uninsured employer under the District of Columbia Act. Since Maryland Casualty had fully satisfied its obligations to Eureka and to Riley under its insurance contract with Eureka, he held that Maryland Casualty is not liable to Riley for any additional payments under District of Columbia law.43 This holding was affirmed by the Board.44
Petitioner Riley challenges the Board order absolving Maryland Casualty of liability under the District of Columbia Act. He argues that by operation of 33 U.S.C. § 935 (1976)45 the Maryland Casualty policy may [252]*252be construed as covering all workmen’s compensation liability of Eureka, under the law of any jurisdiction. In this argument he is mistaken. Section 935, by its terms, applies only in cases “where the employer is not a self-insurer * * *.”46 In this case Eureka knowingly neglected to procure insurance against liability under the laws of jurisdictions other than Virginia.47 No law operates to give Eureka greater coverage than it was willing to pay for. With respect to District of Columbia liability, Eureka was a self-insurer. See Rex Investigative & Patrol Agency, Inc. v. Collura, 329 F.Supp. 696, 699-700 (E.D.N.Y.1971); Smith v. Continental Nat’l American Group, 321 F.Supp. 1354, 1355 (E.D.La.1971).
[251]*251In any case where the employer is not a self-insurer, in order that the liability for compensation imposed by this chapter may be most effectively discharged by the employer, and in order that the administration of this chapter in respect of such liability may be facilitated, the Secretary shall by regulation provide for the discharge, by the carrier for such employer, of such obligations and duties of the employer in respect to such liability, imposed by this chapter upon the employer, as it considers proper in order to effectuate the provisions of this chapter. For such purposes (1) notice to or knowledge of an employer of the occurrence of the injury [252]*252shall be notice to or knowledge of the carrier, (2) jurisdiction of the employer by a deputy commissioner, the Board, or the Secretary, or any court under this chapter shall be jurisdiction of the carrier, and (3) any requirement by a deputy commissioner, the Board, or the Secretary, or any court under any compensation order, finding, or decision shall be binding upon the carrier in the same manner and to the same extent as upon the employer.
We find no reason to reverse the Board with regard to the liability of Maryland Casualty.
IV. LIABILITY OF NATIONAL VAN LINES AND TRANSPORT INDEMNITY
The final issue raised in this petition is the liability of National Van Lines and its insurer, Transport Indemnity Company, as the “contractor” of Eureka’s interstate business. Section 904(a) of the LHWCA provides in relevant part:
In the case of an employer who is a subcontractor, the contractor shall be liable for and shall secure the payment of such compensation to employees of the subcontractor unless the subcontractor has secured such payment.
National Van Lines is liable to Riley under this provision if, and only if, Eureka served as a subcontractor to National within the meaning of the statute. The ALJ ruled that Eureka was such a subcontractor of National Van Lines,48 but this ruling was reversed by the Board.49 The Board’s decision is appealed to this court by petitioners Riley and the Director of OWCP.
The basis for the Board’s decision is not fully clear from its opinion. After setting out the law governing the imposition of workmen’s compensation liability on general contractors,50 the Board stated without further explanation:
The relationship of National Van Lines and Eureka Van Lines[,] the Board concludes, is not the contractor-subcontractor relationship contemplated by Section 4 [33 U.S.C. § 904]. We agree with National Van Lines that Eureka was acting under an independent agency or contractor agreement * * *.
JA 57.
Ordinarily, our review of such decisions by the Board is limited: the decision will be affirmed unless it is unsupported by substantial evidence or inconsistent with applicable law.51 Such deference is made difficult in this case by the failure of the Board to explain how its conclusion follows from its statement of the facts. Moreover, we [253]*253should note that we are freer to undertake an independent examination of this portion of the case because the Director of OWCP opposes the Board’s decision on the liability of National Van Lines and Transport Indemnity. Cf. General Electric Co. v. Gilbert, 429 U.S. 125, 144-145, 97 S.Ct. 401, 50 L.Ed.2d 343 (1976) (difference in interpretation of Title VII by Equal Employment Opportunity Commission and Wage and Hour Administrator prevented the Court from strict deference to the appropriate agency). Since OWCP is the policymaking body in the area of workmen’s compensation,52 and since the Board’s decision involves a policy judgment, we believe that this conflict between agencies necessitates a more searching review by this court.
The “Agency Agreement” in effect between Eureka and National Van Lines at the time of Riley’s accident did not employ the words “contractor” or “subcontractor” with respect to the parties.53 Eureka was denominated an “agent” of National Van Lines; the agreement specifically disclaimed any employer-employee relation between National Van Lines and Eureka or its employees. Obviously, the terminology used in the agreement is not dispositive of this case.
Eureka did not possess an ICC Motor Carrier’s license of its own. It therefore could not, and did not, transport cargo outside the Washington, D.C. metropolitan area except as an agent of National Van Lines. Eureka conducted its interstate haulage in the name of National Van Lines, in accordance with National’s instructions expressed in a manual called the “Agent’s Guide,” in trucks decorated with National’s name, colors, and insignia. Although Eureka was not contractually obligated to accept any particular shipment for National’s customers, in practice Eureka solicited orders for National and made extensive deliveries under National’s direction. The contractual obligations for interstate haulage remained with National Van Lines, as did the right to payment. Although Eureka retained substantial discretion over the details of its operations, National reserved the right to train Eureka employees involved in performing National’s contracts, and to reject employees who did not successfully complete this training.
This court has never interpreted the general contractor’s liability provision of Section 904(a). In doing so now, we are guided by the experience of the many jurisdictions with similar provisions that have considered the question.54 We are also guided by the purpose of the provision, which is to protect injured employees engaged in a common enterprise from the irresponsible failure of their immediate employers to insure. By imposing secondary liability on the general employer or contractor, the provision deters unscrupulous employers from dividing their work among a number of smaller, uninsured entities, and creates an incentive for the general employer to insist that his subcontractors be adequately insured.55
A general employer will be held secondarily liable for workmen’s compensation when the injured employee was engaged in work either that is a subcontracted fraction of a larger project or that is normally conducted by the general employer’s own employees rather than by independent contractors.56 The most common form of the relationship—and that represented by the Eureka-National agreement—is [254]*254where the general employer delegates the performance of portions of its contractual obligations to other firms.
For example, in DeMola v. Riccio, 61 App. Div.2d 854, 401 N.Y.S.2d 919 (3d Dep’t 1978), the general employer, a towing company, contracted with the city to remove abandoned vehicles from the streets. It further arranged with a second towing company — the immediate employer of the injured worker — for the second company to perform some of the work in exchange for the right to the proceeds of the sale of the scrapped vehicles. This second firm was not adequately insured. When the injured employee sought further payments, the court held the general employer liable. In Thorsheim v. State, 469 P.2d 383, 388-389 (Alaska 1970), the court announced these two requirements for the relationship, under a statute substantially identical to the District of Columbia provision: (1) the existence of a contractual obligation on the part of a person held to be a contractor, and (2) a subletting of a part of that obligation to the person held to be a subcontractor.57
This statement of the law does not differ substantially from that expressed by the Board in its opinion. The Board said that Section 904 has been applied “in cases where a contractor entered into a contract with a third party to perform a service. The contractor then delegated its duties to the subcontractor.” JA 57. The Board’s error was not in its statement of the law, but in the application of that law to the facts of this case. National Van Lines contracted with various shippers to carry cargo interstate; it then delegated a portion of its contracts to Eureka. There is no doubt that Eureka employees performed work that would normally be performed by National Van Lines’s own employees. Applying the generally accepted test for contractor liability, we must conclude that National Van Lines is liable under Section 904.
To accept the Board’s conclusion would allow National Van Lines to avoid liability to workers performing National’s contracts, even though National’s subcontractor was inadequately insured. This would defeat the purpose of Section 904(a) and, more important, deny the benefit of the law to injured workers who need its protection.58
National Van Lines cannot complain of unfair surprise in this decision. In its agreement with Eureka, National required that Eureka obtain workmen’s compensation insurance as required by law.59 The reason National would impose such a requirement is to protect itself from liability under Section 904(a). National Van Lines could have avoided any Section 904(a) liability simply by ensuring that Eureka comply with the contract. Having failed to enforce its contractual rights, National may not now shift its loss to the hapless Riley.
V. CONCLUSION
The decision of the Benefits Review Board, BRB Nos. 72-259, 259A, 259B, 7 B.R.B.S. 445 (Jan. 23,1978), is reversed with respect to the liability of National Van Lines and its insurer, Transport Indemnity Company, to claimant James A. Riley, III. In all other respects the decision is affirmed.
So ordered.