La. Civ. Code Ann. art. § 467

Art. 467.  Immovables by declaration.

The owner of an immovable may declare that machinery, appliances, and equipment owned by him and placed on the immovable, other than his private residence, for its service and improvement are deemed to be its component parts.  The declaration shall be filed for registry in the conveyance records of the parish in which the immovable is located.

Acts 1978, No. 728, §1.