Cabotage
Cabotage (/ˈkæbətɪdʒ, -tɑːʒ/) is the transport of goods or passengers between two places in the same country. It originally applied to shipping along coastal routes, port to port, but now applies to aviation, railways, and road transport as well.

Cabotage rights are the right of a company from one country to trade in another country. In aviation, it is the right to operate within the domestic borders of another country. Most countries do not permit aviation cabotage, and there are strict sanctions against it, for reasons of economic protectionism, national security, or public safety. One notable exception is the European Union, whose member states all grant cabotage rights to each other.

Jones Act / Merchant Marine Act of 1920
Cabotage is the transport of goods or passengers between two points in the same country, alongside coastal waters, by a vessel or an aircraft registered in another country. Originally a shipping term, cabotage now also covers aviation, railways, and road transport. Cabotage is "trade or navigation in coastal waters, or the exclusive right of a country to operate the air traffic within its territory". In the context of "cabotage rights", cabotage refers to the right of a company from one country to trade in another country. In aviation terms, for example, it is the right to operate within the domestic borders of another country. Most countries enact cabotage laws for reasons of economic protectionism or national security; 80% of the UN's member states with coastlines have cabotage law

The cabotage provisions relating to the Jones Act restrict the carriage of goods or passengers between United States ports to U.S.-built and flagged vessels. It has been codified as portions of 46 U.S.C. Generally, the Jones Act prohibits any foreign-built, foreign-owned or foreign-flagged vessel from engaging in coastwise trade within the United States.