Louisiana Revised Statutes Tit. 9, § 1754. Incorporation by reference

A trust, whether inter vivos or testamentary, may incorporate by reference any or all of the terms of an existing trust. Unless the instrument otherwise provides, all amendments of the existing trust in force on the date of the execution of the instrument creating the new trust shall be deemed incorporated, but neither subsequent modification nor termination of the existing trust shall have any effect on the new trust.