See Full Constitution
Article IV

Section 15. Adjournment

(a) When the General Assembly is in session, neither house without the consent of the other shall adjourn for more than three days or to a place other than where the two houses are sitting.
(b) If either house certifies that a disagreement exists between the houses as to the time for adjourning a session, the Governor may adjourn the General Assembly to a time not later than the first day of the next annual session.