Investment of funds

Funds not used in loans to members may be invested: a. In securities, obligations, or other instruments of or issued by or fully guaranteed as to principal and interest by the United States of America or any agency thereof or in any trust or trusts established for investing directly or collectively in the same; b. In obligations of any state of the United States, the District of Columbia, the Commonwealth of Puerto Rico, and the several territories organized by Congress, or any political subdivision thereof; c. In certificates of deposit or passbook-type accounts issued by a state or federally chartered bank, savings bank, or savings and loan association; d. In loans to or in shares or deposits of other credit unions, corporate central credit unions, or a central liquidity facility established under any state or federal law; e. In shares, stocks, loans or other obligations of any organization, corporation, or association membership or ownership of which is primarily confined or restricted to credit unions, or organizations of credit unions, and the purpose of which is to strengthen or advance the development of credit unions or credit union organizations; f. In shares of a cooperative society organized under the laws of this State or of the laws of the United States in a total amount not exceeding 10% of the shares, deposits, and surplus of the credit union.