Texas Tax Code - TAX § 151.329. Certain Ships and Ship Equipment

(1) materials, equipment, and machinery that enter into and become component parts of a ship or vessel that is of eight or more tons displacement and is:

(2) a ship or vessel of eight or more tons displacement, that is used exclusively and directly in a commercial enterprise and is sold by the vessel's builder;

(3) materials and labor used in repairing, renovating, or converting a ship or vessel that is of eight or more tons displacement and that is used exclusively and directly in a commercial enterprise;

(4) materials and supplies purchased by the owner or operator of a ship or vessel operating exclusively in foreign or interstate coastal commerce if the materials and supplies:

(5) materials and supplies purchased by a person providing stevedoring services for a ship or vessel operating exclusively in foreign or interstate coastal commerce if the materials and supplies are loaded aboard the ship or vessel and are not removed before the departure of the ship or vessel.