SECTION 618. ORDINANCES: CODIFICATION.
   The City Council shall periodically provide for the preparation of a general codification, compilation, consolidation, revision, indexing or arranging of all City ordinances and resolutions then having the force and effect of law.
   The codification of City ordinances may be accomplished by reference to the passage of previously adopted ordinances. Such codifications need not be published in the manner required for other ordinances, but prior to adoption, at least three copies of the Code shall be filed in the office of the City Clerk, where they shall be available for public inspection.
   Detailed regulations pertaining to any subject, such as fire, building, plumbing, electrical and mechanical codes, as well as codes on other subjects that require extensive regulations, may be adopted by reference, and without the necessity of publication, in the manner provided above. One copy of such codes shall be filed in the office of the City Clerk, prior to their adoption, where they shall be available for public inspection.
   Subsequent amendments to sections of the general codification of City ordinances, or the regulatory codes, shall be enacted in the same manner required by this Charter for the amendment of ordinances generally.