What special license do you need to become a lawyer?

To become a lawyer, you need a license to practice law, which is granted by the state bar association (or equivalent body) in the jurisdiction where you intend to practice. This isn't a single, nationally-recognized license; you must be licensed in each state where you want to work. Getting this license requires passing the bar exam in that state, completing law school, and often fulfilling other requirements like character and fitness evaluations.