Credit union may participate in loan with another credit union, financial organization or national cooperative bank

(a) A credit union may agree to participate in the risk liability and income of loans to credit union members jointly with other credit unions, credit union organizations, financial institutions or financial organizations. Such participation loans shall be in accordance with written policies of the board of directors. A credit union which originates a loan for which participation agreements are made in accordance with this subsection shall retain an interest of at least 10% of the face amount of the loan. (b) A credit union may agree to participate in the risk liability and income of loans or guarantees with the national cooperative bank established pursuant to the act of congress known as the national consumer cooperative bank act of 1978, and any amendments thereto. Such loans may be made to any eligible borrower under such act of congress and may be made jointly with any financial institution, agency, instrumentality or foundation authorized to do so under such act.