Joint Rule No. 2.  Presentation of Bills to Governor After Sine Die Adjournment

A bill passed by both houses of the legislature shall be signed by the presiding officers and delivered by the chief clerical officer of the house of origin to the governor within three days after passage.  The signature and date of delivery of any bill signed and delivered to the governor after the sine die adjournment of the legislature shall be noticed by the chief clerical officers of each house in the official journals of the last day's proceedings, of the respective house, for which purpose said officers are authorized to make appropriate insertions therein.  

Mason's Manual:  Sec. 701

SCR 1, 1st Ex. Sess., 1975.