- Modules
- UG-2.2.1- Rulebook Volumes are subdivided into Modules, arranged in groups according to their subject matter, underneath the headings listed in Paragraph UG 2.1.3 above. October 07
- UG-2.2.2- Each Module in a Volume is referenced using a two- or three-letter code which is usually a contraction or abbreviation of its title. These codes are used for cross-referencing within the text. Amended: July 2012
 October 07
