The aim of this book was to design a vehicle suitable for use by people with special needs, specifically wheelchair users, who visit or want to get to know the area used for environmental preservation, focusing on the origin of life of the sea turtles that lay their eggs there. The idea was based on the aspect of sustainability and accessibility, using Portal Brasil, which deals legally with the subject, as a point of support. According to Machado (2005), the defence of sustainable development will shape the development of the research. To build the project, it was necessary to contextualise the TAMAR Project, conceptualise accessibility, define sustainability and the legal framework that makes it up. The project was designed to build an articulated chair at a reduced cost, using material from auctions, scrap metal and discards, with the aim of using it in the TAMAR Project in the state of Espírito Santo. In the course of this work, a suggestion will be made for using parts from seized vehicles that have not been recovered, which are in a state of scrap in DETRAN-accredited yards.