La. R.S. 47:337.20.1 — Collection from certain interstate and foreign transportation dealers

A.(1) Persons, as defined in this Chapter, engaged in the business of transporting passengers or property for hire in interstate or foreign commerce, whether by railroad, railway, automobile, motor truck, boat, ship, aircraft, or other means, and who, as a part of such business, transport passengers or property between points in Louisiana and points offshore outside the territorial limits of any state, may, at their option under rules and regulations prescribed by the secretary of revenue, register as dealers and pay the taxes on the sale or use of tangible personal property imposed by the local ordinances on the basis of the formula hereinafter provided.
(2) Such persons, when properly registered as dealers, may make purchases in this state or import property into this state without payment of the sales or use taxes imposed at the time of purchase or importation, provided such purchases or importations are made in strict compliance with the rules and regulations of the secretary of revenue. Thereafter, on or before the twentieth day of the month following the purchase or importation, the dealer shall transmit to the collector, on forms secured by him, returns showing gross taxable purchases and importations of tangible personal property, the cost price of which has not previously been included in a return to the taxing authority. The amount of such purchases and importations shall be multiplied by a fraction the numerator of which is the taxing jurisdiction's mileage operated by the taxpayer and the denominator of which is the total mileage operated by the taxpayer, to obtain the taxable amount of tax basis. This taxable amount of tax basis shall be multiplied by the tax rate to disclose the tax due.
(3) Each such dealer, at the time of making the return required hereunder, shall remit to the collector the tax due for the preceding calendar month as shown on the return.
B. For the purpose of calculating the fraction set forth in Subsection A of this Section:
(1) A unit of transportation measurement other than mileage may be used if appropriate based on industry custom and type of transportation.
(2) Notwithstanding anything to the contrary, "taxing jurisdiction's mileage" shall not include mileage in the taxing jurisdiction that is a segment of or a part of a stream of trade, traffic, transportation, or movement of passengers or property between a point in the state of Louisiana and a point offshore beyond the territorial limits of any state.
C. The provisions of this Section shall be interpreted consistently with similar provisions of law in Chapter 2 of this Subtitle, until provisions of this Chapter are amended to provide with respect thereto.