CODEFF works for the preservation of plant and animal species that are at risk of disappearance. The organization helps to protect and defend unique ecosystems throughout the world. Internships require at least 3 months working in Chile with CODEFF and it is extremely important that the person be fluent in Spanish. Interns should also know how to develop an activity concerning the environmental field. All volunteers must be able to support themselves while in Chile and must join CODEFF as a member for one year at the cost of $50.