La. Stat. tit. 9 § 1751

Current with changes from the 2024 legislative session effective on or before 7/1/2024, from Acts 2,3, 6-535, and 580-647
Section 9:1751 - Form of testamentary trust

A testamentary trust may be created only in one of the forms prescribed by the laws regulating donations mortis causa.

La. R.S. § 9:1751