Kan. Stat. § 45-311
The secretary of state shall prefix to each printed volume of the laws his certificate that the acts and resolutions therein contained are truly copied from the original enrolled acts and other official documents of the legislature, and specifying the date of the publication of such volume. The date of publication so specified shall not be sooner than the date that at least a limited number of the volume are in the office of the secretary of state and shall be July 1 if a limited number of the volume are in the office of the secretary of state on or before July 1, unless an earlier date for any volume is directed by concurrent resolution of the legislature. The date so specified need not be the same as the date when such volume is first actually distributed. The certificates mentioned in this act shall be evidence of the facts contained therein.
K.S.A. 45-311