Michigan Compiled Laws, Chapter 555. Uses and Trusts § 555.101

(a) “Collective investment fund” means a fund maintained by a financial institution or by 1 or more affiliated financial institutions that consists solely of assets of retirement, pension, profit sharing, stock bonus, or other trusts that are exempt from federal income tax.

(b) “Common trust fund” means a fund maintained by a financial institution or 1 or more affiliated financial institutions exclusively for the collective investment and reinvestment of money contributed to the fund by the financial institution or the affiliated financial institutions in its capacity as a fiduciary or cofiduciary.

(c) “Fiduciary” means a financial institution or other person acting in the capacity of guardian, conservator, personal representative, or trustee, either solely or together with others, or custodian under a uniform gift or transfer to minors act of any state.

(d) “Financial institution” means any of the following:

(e) “Fund” means a common trust fund or a collective investment fund.

(f) “Plan” means the written plan for a fund described in section 4.