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I

I.A.T.A.

International Air Transport Association.

I.C.A.O.

International Civil Aviation Organization.

Interline

Between two or more transportation lines.  Also known as "joint haul".

Interline Freight

Freight which moves from point of origin to destination over the lines of two or more transportation companies.

Intermodal Transportation

Transportation movement involving more than one mode, e.g., rail-road, road-air, or rail-water.

Interprovincial

Operating between provinces.

Intraprovincial

Operating within one province.