The numbering system used in this Code is the same system used in many state and municipal codes. Each section number consists of two component parts separated by a dash, the figure before the dash representing the chapter number and the figure after the dash indicating the position of the section within the chapter. Thus, the first section of Chapter 1 is numbered 1-1 and the seventh section of Chapter 6 is 6-7. Under this system each section is identified with its chapter and, at the same time, new sections or even whole chapters can be inserted in their proper places, simply by using the decimal system for amendments. By way of illustration: If new material consisting of three sections that would logically come between Sections 4-4 and 4-5 is desired to be added, such new sections would be numbered 4-4.1, 4-4.2, 4-4.3 respectively. New chapters may be included by the addition of a decimal after the chapter number; e.g., if the new material is to be included between Chapters 6 and 7 it will be designated as Chapter 6.5. Care should be taken that the alphabetical arrangement of chapters is maintained when including new chapters. New articles and new divisions may be included in the same way or, in the case of articles, may be placed at the end of the chapter embracing the subject, and, in the case of divisions, may be placed at the end of the article embracing the subject, the next successive number being assigned to the article or division.