((a)) ** Rules and regulations** The provisions of this subchapter shall be administered by the Secretary of Labor, and the Secretary is authorized to make rules and regulations for the administration thereof and to contract with insurance carriers for the use of the service facilities of such carriers for the purpose of facilitating administration.

((b)) ** Agreements and working arrangements with other agencies, etc.** In administering the provisions of this subchapter the Secretary may enter into agreements or cooperative working arrangements with other agencies of the United States or of any State (including the District of Columbia, Hawaii, Alaska, Puerto Rico, and the Virgin Islands) or political subdivision thereof, and with other public agencies and private persons, agencies, or institutions, within and outside the United States, to utilize their services and facilities and to compensate them for such use. The Secretary may delegate to any officer or employee, or to any agency, of the United States or of any State, or of any political subdivision thereof, or Territory or possession of the United States, such of his powers and duties as he finds necessary for carrying out the purposes of this subchapter.

((c)) ** Waiver of notice of injury and filing of claims** The Secretary, in his discretion, may waive the limitation provisions of subchapter I of chapter 81 of title 5 with respect to notice of injury and filing of claims under this subchapter, whenever the Secretary shall find that, because of circumstances beyond the control of an injured person or his beneficiary, compliance with such provisions could not have been accomplished within the time therein specified.