760 ILCS 3/1205

This Article applies to a trust created before, on, or after the effective date of this Code that: (1) has its principal place of administration in this State, including a trust whose principal place of administration has been changed to this State; or (2) provides by its trust instrument that it is governed by the law of this State or is governed by the law of this State for the purpose of: (A) administration, including administration of a trust whose governing law for purposes of administration has been changed to the law of this State; (B) construction of terms of the trust; or (C) determining the meaning or effect of terms of the trust.