15 Pa.C.S. § 5586: Restrictions on investments.

(a) Legal investments.--If the trust instrument limits or restricts the investment of the assets to investments of the class authorized by law as legal investments, a nonprofit corporation may invest and reinvest the assets of the trust or fund in any common trust fund maintained by the corporation if the investments composing the fund consist solely of investments of the class authorized by 20 Pa.C.S. Ch. 72 (relating to prudent investor rule) to be held by fiduciaries.

(b) Other than legal investments.--If the trust instrument does not limit or restrict the investment of the assets to investments of the class authorized by law as legal investments, the corporation may invest and reinvest the assets of the trust or fund in any common trust fund maintained by the corporation composed of the investments as in the honest exercise of the judgment of the directors or other body of the corporation they may, after investigation, determine to be safe and proper investments.