(a) General. Where a case involves matters of interest to more than one department or agency, USAID should maintain liaison with other departments and agencies of the Government and take such joint action as may be proper under the circumstances, including holding joint meetings.

(b) Cases involving funds of other departments or agencies. Requests for adjustment within any category, involving the funds of another department or agency, shall not be approved by USAID until advice is requested and received from the department or agency whose funds are involved.