Organisation Internationale des Constructeurs d'Automobiles

The Organisation Internationale des Constructeurs d'Automobiles, commonly abbreviated OICA (English: International Organization of Motor Vehicle Manufacturers), is a federation of automobile manufacturers, based in Paris, founded in 1919. It coordinates communication among manufacturers, as well as a number of international auto shows.

OICA hosts on its web site the working documents from various United Nations expert groups, including World Forum for Harmonization of Vehicle Regulations.

The OICA coordinates scheduling for the following major auto shows:

...
Wikipedia