48 As  I  have  said,  the  Code  is  published  under  the  authority  of  chapter  2B  of  the Code itself.  Chapter 2B.12 provides as follows: 2B.12  Iowa Code And Code Supplement. 1.  A new Iowa Code shall be issued as soon as possible after the final adjournment of  the  second  regular  session  of  the  general  assembly.  A  new  Code  Supplement shall  be  issued  as  soon  as  possible  after  the  first  regular  session  of  the  general assembly. A Code Supplement may be issued after a special session of the general assembly or as required by the legislative council.   2.  The entire Iowa Code shall be maintained on a computer data base which shall be  updated  as  soon  as  possible  after  each  session  of  the  general  assembly.  The Iowa Code and Code Supplement shall be prepared and printed on a good quality of  paper  in  one  or  more  volumes,  in  the  manner  determined  by  the  Iowa  Code editor  in  accordance  with  the  policies  of  the  legislative  council,  as  provided  in section 2.42.   3.  An  edition  of  the  Iowa  Code  or  Code  Supplement  shall  contain  each  Code section in its new or amended form. However, a new section or amendment which does not take effect until after the probable publication date of a succeeding Iowa Code or Code Supplement may be deferred for publication in that succeeding Iowa Code  or  Code  Supplement.  The  sections  shall  be  inserted  in  each  edition  in  a logical order as determined by the Iowa Code editor in accordance with the policies of the legislative council.   4.  Each  section  of  an  Iowa  Code  or  Code  Supplement  shall  be  indicated  by  a number printed in boldface type and shall have an appropriate headnote printed in boldface type.   5.  Appropriate historical references or source notes may be placed following each section.   6.  The  Iowa  Code  published  after  the  second  regular  session  of  the  general assembly shall include:   a.  An analysis of the Code by titles and chapters.   b.  The Declaration of Independence.   c.  The Articles of Confederation.   d.  The Constitution of the United States.   e.  The laws of the United States relating to the authentication of records.   f.  The Constitution of the State of Iowa.   g.  The Act admitting Iowa into the union as a state.   h.  A chapter title, number, and chapter analysis at the head of each chapter. The chapter number shall be printed at the top of each page.   i.  All of the statutes of Iowa of a general and permanent nature, except as provided in subsection 3.   17