Delaware Code
Chapter 29. Apportionment of Estate Taxes [Effective Jan. 1, 2014, but see § 2914 of this title for future applicability]
§ 2904. Executor's or administrator's obligation to distribute property before person entitled has paid pro rata tax or furnished security [Effective until Jan. 1, 2014, but see § 2914 of this title for future applicability].

No executor, administrator or other person acting in a fiduciary capacity shall be required to transfer, pay over or distribute any fund or property which may have either a federal or a state tax imposed upon it or which may be liable for the payment of any federal or state tax, until the amount of such tax or taxes due from the devisee, legatee, distributee or other person to whom such property is transferred, is paid or, if the apportionment of tax has not been determined, adequate security is furnished by the transferee for such payment.

Structure Delaware Code