It is estimated that approximately 600 million people around the world have some kind of diagnosis that could be classified as a disability, and among the territories of the United States, Puerto Rico has one of the highest incidences of disability. Everything from education to the provision of social services is regulated by different legislation ultimately aimed at including people with a disability and helping them play an active role in society. This study seeks to understand how the concept of disability has evolved in a legal context (and in turn its social representations), as well as in the legislation that promotes and protects the rights of people with a disability. Psychologists should develop their abilities with regards to disability and its legislation in order to advocate for people with a disability, help them gain autonomy, and promote better quality of life and participation in society based on respect and tolerance towards diversity.