Clean Aviation Joint Undertaking

The Clean Aviation Joint Undertaking (CAJU), formerly known as Clean Sky Joint Undertaking, is a public-private partnership between the European Commission and the European aeronautics industry that coordinates and funds research activities to deliver significantly quieter and more environmentally friendly aircraft. The CAJU manages the Clean Sky Programme (CS), the Clean Sky 2 Programme (CS2), and now as Clean Aviation Joint Undertaking (CAJU), making it Europe's foremost aeronautical research body.

Source: Wikipedia — Clean Aviation Joint Undertaking (CC BY-SA 4.0)