22 U.S.C. § 2710

(a) International agreements The Secretary of State may use funds available to the Secretary for the expenses of United States participation in arbitrations and other proceedings for the peaceful resolution of disputes under treaties or other international agreements. (b) Contracts abroad The Secretary of State may use funds available to the Secretary for the expenses of United States participation in arbitrations arising under contracts authorized by law for the performance of services or acquisition of property, real or personal, abroad. (c) Procurement of services The Secretary of State may use competitive procedures or procedures other than competitive procedures to procure the services of experts for use in preparing or prosecuting a proceeding before an international tribunal or a claim by or against a foreign government or other foreign entity, whether or not the expert is expected to testify, or to procure personal and other support services for such proceedings or claims. The Secretary need not provide any written justification for the use of procedures other than competitive procedures when procuring such services under this subsection and need not furnish for publication in the Commerce Business Daily or otherwise any notice of solicitation or synopsis with respect to such procurement. (d) International Litigation Fund (1) Establishment In order to provide the Department of State with a dependable, flexible, and adequate source of funding for the expenses of the Department related to preparing or prosecuting a proceeding before an international tribunal, or a claim by or against a foreign government or other foreign entity, there is established an International Litigation Fund (hereafter in this subsection referred to as the “ILF”). The ILF may be available without fiscal year limitation. Funds otherwise available to the Department for the purposes of this paragraph may be credited to the ILF. (2) Reprogramming procedures Funds credited to the ILF shall be treated as a reprogramming of funds under section 2706 of this title and shall not be available for obligation or expenditure except in compliance with the procedures applicable to such reprogrammings. This paragraph shall not apply to the transfer of funds under paragraph (3). (3) Transfers of funds Funds received by the Department of State from another agency of the United States Government or pursuant to the Department of State Appropriations Act of 1937 ( 49 Stat. 1321 , 22 U.S.C. 2661 ) to meet costs of preparing or prosecuting a proceeding before an international tribunal, or a claim by or against a foreign government or other foreign entity, shall be credited to the ILF. (4) Use of funds Funds deposited in the ILF shall be available only for the purposes of paragraph (1). (e) Retention of funds (1) In general To reimburse the expenses of the United States Government in preparing or prosecuting a proceeding before an international tribunal, or a claim against a foreign government or other foreign entity, the Secretary may retain 1.5 percent of any amount between $100,000 and $5,000,000, and one percent of any amount over $5,000,000, received per claim under section 2668a of this title . (2) Treatment Amounts retained under the authority of paragraph (1) shall be deposited into the fund under subsection (d).