; and (ii) detail officers or employees of the Commission to work on a temporary basis for any such foreign entity. (B) Reciprocity and reimbursement (i) Reciprocity not required Assistance described in subparagraph (A) need not be provided on a reciprocal basis. (ii) Written agreement required The Commission may provide and accept assistance described in subparagraph (A) on a reimbursable or non-reimbursable basis, only in accordance with a written agreement between the Commission and the foreign entity involved. (iii) Rules applicable to reimbursements (I) Form A reimbursement to, or from or on behalf of, the Commission may be made in cash or in-kind. (II) Advance reimbursements The Commission may provide an advance reimbursement to such a foreign entity, and may accept an advance reimbursement from such a foreign entity. Such an advance reimbursement shall be available for the services and uses set forth in the applicable written agreement. (III) Use of reimbursements from foreign entities (aa) In general The Commission shall credit a reimbursement received from such a foreign entity to the appropriate Commission appropriation, fund, or account, subject to item (bb). (bb) Use of advance reimbursements The Commission may use such an advance reimbursement for direct expenditure in lieu of making the credit required by item (aa). (C) Standards of conduct An officer or employee employed under subparagraph (A)(i) shall be subject to the provisions of law relating to ethics, conflicts of interest, or corruption, and to any other statute governing the standards of conduct for Commission employees that are applicable to the type of appointment for the duration of the appointment. .