La. Stat. tit. 9 § 408
Current with changes from the 2024 legislative session effective on or before 7/1/2024, from Acts 1-3, 6-671
The child's mother, any man who would be presumed to be the father under Civil Code Article 185, and the biological father, if known, shall be joined in a filiation or paternity proceeding, except that joinder is not required of a person whose parental rights have been terminated, or who is deceased, or whose joinder is determined otherwise not to be feasible.
La. R.S. § 9:408