In general. Unless excluded under section 4262(b) (see § 49.4262(b)-1), taxable transportation means:

Transportation which begins in the United States or in that portion of Canada or Mexico which is not more than 225 miles from the nearest point in the continental United States (the “225-mile zone”) and ends in the United States or in the 225-mile zone; and

In the case of any other transportation, that portion of such transportation which is directly or indirectly from one port or station in the United States to another port or station in the United States, but, with respect to transportation which begins after November 15, 1962, only if such portion is not part of “uninterrupted international air transportation” within the meaning of section 4262(c) (3) and paragraph (c) of § 49.4262(c)-1. Transportation from one port or station in the United States to another port or station in the United States occurs whenever a carrier, after leaving any port or station in the United States, makes a regularly scheduled stop at another port or station in the United States irrespective of whether stopovers are permitted or whether passengers disembark.

Illustrations of taxable transportation under section 4262(a) (1). In each of the following examples the transportation is taxable transportation and the amount paid within the United States for such transportation is subject to the tax:

New York to Seattle;

New York to Vancouver, Canada, with a stop at Jasper, Canada;

Chicago to Monterrey, Mexico;

Montreal, Canada, to Toronto, Canada; and

Miami to Los Angeles via Panama. If in the examples in subparagraphs (1) and (5) of this paragraph, payment for the transportation had been made outside the United States, such payment would nevertheless have been subject to tax since in each case the transportation begins and ends in the United States.

Illustrations of taxable transportation under section 4262(a) (2) beginning before November 16, 1962. The following examples will illustrate the application of section 4262(a) (2) with respect to transportation beginning before November 16, 1962:

A purchases in New York a round-trip ticket for transportation by air from New York to Havana, Cuba, with a stop at Miami. The amount paid for that part of the transportation between New York and Miami on both going and return trips is subject to tax, since such transportation is from one station in the United States to another station in the United States.

B purchases a ticket in San Francisco for combination rail and water transportation from San Francisco to New York to Halifax, Canada, to London, England. The amount paid for that part of the transportation between San Francisco and New York is subject to tax, since such transportation is from one station in the United States to another station in the United States. Although Halifax is in the 225-mile zone, the transportation between New York and Halifax is not taxable because it is not transportation from one port in the United States to another port in the United States.

C purchases a ticket in Seattle for transportation from Seattle to Lisbon, Portugal, with stops at Vancouver, Edmonton, and Montreal, Canada, and New York. The amount paid for that part of the transportation from Seattle to New York is subject to tax, since it is indirectly from one station in the United States to another station in the United States.

E purchases in Chicago a ticket for transportation by air from Chicago to New York to Gander, Newfoundland, to London, England. Only the amount paid for that part of the transportation between Chicago and New York is subject to tax. If, while on the New York-Gander leg of the journey the aircraft is forced to land at Boston, because of weather or other emergency, no tax is imposed by reason of such emergency stop.

G charters a plane in New York for transportation to Bogota, Colombia, and pays the charter charges in New York. The plane stops at an airport in Miami for refueling in accordance with its flight plan. The tax attaches with respect to that part of the transportation which is between New York and Miami.

Illustrations of taxable transportation under section 4262(a) (2) beginning after November 15, 1962. The following examples will illustrate the application of section 4262(a) (2) with respect to transportation beginning after November 15, 1962:

A purchases in New York a round-trip ticket for transportation by air from New York to Nassau with a scheduled stopover of 10 hours in Miami on both the going and return trip. The amount paid for that part of the transportation from New York to Miami on the going trip is subject to tax, since such transportation is from one station in the United States to another station in the United States and the trip is not uninterrupted international air transportation because the scheduled stopover interval in Miami is greater than six hours. The amount paid for the return trip from Miami to New York is subject to tax for the same reason.

A purchases a ticket in San Francisco for transportation to London with a stopover in New York. He is to travel by air from San Francisco to New York and from New York to London by water. He is scheduled to stopover in New York for 4 hours. That portion of the total amount paid by A for his transportation applicable to the air transportation between San Francisco and New York is subject to tax since such transportation is from one station in the United States to another station in the United States, and is not a part of uninterrupted international air transportation since the complete trip from San Francisco to London is not entirely by air.

A purchases a through ticket for air transportation from San Francisco to London with stopovers at Denver, Chicago, Philadelphia, and New York. At each stopover the air carrier has scheduled his arrival and departure within 6 hours. After arriving in Philadelphia, A, for his own convenience, decides to stopover for more than 6 hours. The total amount paid by A for his transportation from San Francisco to New York is subject to tax since the scheduled interval between the beginning or end and the end or beginning of any two segments of the domestic portion of international air transportation exceeded 6 hours. If the stopover interval in Philadelphia is extended for more than 6 hours by the carrier solely for its own convenience such as making repairs to the aircraft, the domestic portion of A's trip will not become taxable, provided A continues his international air transportation no later than on the first available flight offered by the carrier.

A purchases a through ticket for transportation by air from Los Angeles to Barbados with stopovers at Houston, Mexico City, Mexico, and Miami. At each stopover, except Mexico City, A's scheduled time of arrival and departure is within six hours. At Mexico City, A's scheduled time of arrival and departure exceeds six hours. The total amount paid by A for his transportation from Los Angeles to Miami, including that part of the transportation to and from Mexico City, is subject to tax since the transportation includes a portion which is indirectly from one port or station in the United States to another port or station in the United States (Houston to Miami via Mexico City) and the scheduled interval in Mexico City between two segments of such portion exceeds six hours. If A's scheduled arrival and departure at each stopover of his transportation which is directly or indirectly between ports or stations in the United States, including that at Mexico City, had been within a six hour interval and A had arrived and departed at each such stopover within that period, the transportation would have qualified as uninterrupted international air transportation and no part of the amount paid for the transportation by air from Los Angeles to Barbados would be subject to tax.

Illustrations of transportation which is not taxable transportation. The following examples will illustrate transportation which is not taxable transportation:

New York to Trinidad with no intervening stops;

Minneapolis to Edmonton, Canada, with a stop at Winnipeg, Canada;

Los Angeles to Mexico City, Mexico, with stops at Tia Juana and Guadalajara, Mexico;

New York to Whitehorse, Yukon Territory, Canada, after November 15, 1962, by air with a scheduled stopover in Chicago of five hours.