Michigan Constitution of 1963, Art. IV, § 13

Sec. 13. The legislature shall meet at the seat of government on the second Wednesday in January of each year at twelve o'clock noon. Each regular session shall adjourn without day, on a day determined by concurrent resolution, at twelve o'clock noon. Any business, bill or joint resolution pending at the final adjournment of a regular session held in an odd numbered year shall carry over with the same status to the next regular session.