The legislative branch of the government of Puerto Rico is responsible for enacting, amending, and repealing the laws of Puerto Rico. Article III of the Constitution of Puerto Rico vests the legislative power on the Legislative Assembly—which together with other agencies form the legislative branch. Article IV vests the executive power on the Governor —whom by its nature forms the executive branch— while Article V vests the judicial power on the Supreme Court of Puerto Rico—which by its nature forms the judicial branch. Although the Constitution does not establish such law, the legislative branch is also composed of other agencies which are subject to the Legislative Assembly but are not part of it.
Article III of the Constitution of Puerto Rico vests the legislative power on the Legislative Assembly.