42 Mode of numbering the model rules

The mode of numbering the model rules corresponds in its basic approach to the technique used in many of the newer European codifications. This too was chosen in order to enable necessary changes to be made later without more than minor editorial labour. Books are numbered by capitalised Roman numerals, i. e., Book I (General provisions), Book II (Contracts and other juridical acts), etc. Only one Book (Book IV (Specific contracts and rights and obligations arising from them)) is divided into Parts: Part A (Sale), Part B (Lease of goods), etc. Chapters, sections (and also sub-sections) are numbered using Arabic numerals, e.g. chapter 5, section 2, sub-section 4, etc. Articles are then numbered sequentially within each Book (or Part) using Arabic numerals. The first Arabic digit, preceding the colon, is the number of the relevant chapter. The digit immediately following the colon is the number of the relevant section of that chapter. The remaining digits give the number of the Article within the section; sub-sections do not affect the numbering. For example, III. — 3:509 (Effect on obligations under the contract) is the ninth Article in section 5 (Termination) of the third chapter (Remedies for non-performance) of the third book (Obligations and corresponding rights). It was not possible, however, to devise a numbering system that would indicate every subdivision of the text without the system becoming too complicated to be workable. One cannot see from the numbering that III. — 3:509 is the first Article within sub-section 3 (Effects of termination).