Definition of devolves:
(v) :
(especially of a central government to a local one, a federal one to a federated one, etc.) To transfer authority and responsibility for (something) to (another entity).
(v) :
(transitive) To delegate (a responsibility, duty, etc.) on or upon someone.
(v) :
(especially of government authority) To shift or to be transferred from a central government to a local one, a federal one to a federated one, etc.
(v) :
(intransitive) To be inherited by someone else; to pass down upon the next person in a succession, especially through failure or loss of an earlier holder.
(v) :
(intransitive) To fall as a duty or responsibility on or upon someone.
(v) :
(intransitive) To degenerate; to break down.