PRLS is divided into two divisions which, upon requests of Members of and offices in the Parliament, carry and deliver specific focal service areas:

(1) Legislative Research Division whose responsible for the conduct of research works, reviews, commentaries, and studies on legislations, policy issues, and other specific legislative concerns of the Parliament; and,

(2) Legislative Measures and Legal Assistance Division, who is task at providing the following services: assistance in reviewing legal documents and drafting legislative measures, technical assistance and legal advice to the Members of the Parliament, providing legal materials to committees on proposed legislations, and legal assistance on administrative cases.