Section 3-501 - Definitions(a) In this subtitle the following words have the meanings indicated.(b) "Common trust fund" means a fund that a trust company maintains under this subtitle solely for the collective investment of money held by the trust company as fiduciary.(c) "Fund plan" means a written plan for the establishment and administration of a common trust fund.(d) "Trust company" includes a national banking association that has powers similar to those given to a trust company under the laws of this State.(e) "Valuation date" means a date as of which a trust company determines the value of the assets in a common trust fund that it administers.