Louisiana Revised Statutes Tit. 47, § 305.45. Exclusions and exemptions; per diem or car hire on freight cars, piggy-back cars, and rolling stock

(1) Hourly, daily, or periodic mileage or other charges referred to as “per diem or car hire” on freight cars and other rolling stock when such charges are paid by reason of the presence of freight cars and other rolling stock owned by another on the tracks of the taxpayer;

(2) Piggy-back trailers or containers when brought into or operated as piggy-back trailers or containers in this state; and

(3) Rolling stock, such as engines, switch engines, freight cars, and machinery owned, operated, or leased by a railroad or any other person, firm, or corporation.