Detail of Personnel to International Organizations.—

Sec. 529. Detail of Personnel to International Organizations.— (a) Whenever the President determines it to be consistent with and in furtherance of the purposes of this Act, the head of any United States Government agency is authorized to detail, assign, or otherwise make available to any international organization any officer or employee of his agency to serve with or as a member of the international staff of such organization, or to render any technical, scientific or professional advice or service to or in cooperation with such organization. (b) Any such officer or employee, while so assigned or detailed, shall be considered, for the purpose of preserving his allowances, privileges, rights, seniority and other benefits as such, an officer or employee of the Government of the United States and of the Government agency from which detailed or assigned, and he shall continue to receive compensation, allowances, and benefits from funds available to that agency or made available to that agency out of funds authorized under this Act. He may also receive, under such regulations as the President may prescribe, representation allowances similar to those allowed under section 901 of the Foreign Service Act of 1946, as amended (22 U. S. C. 801). The authorization of such allowances and other benefits and the payment thereof out of any appropriations available therefor shall be considered as meeting all the requirements of section 1765 of the Revised Statutes. (c) Details or assignments may be made under this section— (1) without reimbursement to the United States by the international organization; (2) upon agreement by the international organization to reimburse the United States for compensation, travel expenses, and allowances, or any part thereof, payable to such officer or employee during the period of assignment or detail in accordance with subsection (b) of this section; and such reimbursement shall be credited to the appropriation, fund, or account utilized for paying such compensation, travel expenses, or allowances, or to the appropriation, fund, or account currently available for such purposes; (3) upon an advance of funds, property, or services to the United States accepted with the approval of the President for specified uses in furtherance of the purposes of this Act; and funds so advanced may be established as a separate fund in the Treasury of the United States, to be available for the specified68 Stat. 859 uses, and to be used for reimbursement of appropriations or direct expenditure subject to the provisions of this Act, any unexpended balance of such account to be returned to the international organization; or (4) subject to the receipt by the United States of a credit to be applied against the payment by the United States of its share of the expenses of the international organization to which the officer or employee is detailed, such credit to be based upon the compensation, travel expenses and allowances, or any part thereof, payable to such officer or employee during the period of assignment or detail in accordance with subsection (b) of this section.