(1) In the ARM, rules have a three-part numerical identifier, with each part separated by a decimal point.

(a) For example, in rule number 44.122.1101:

(i) the first part, "44", is the title number assigned to the department;

(ii) the second part, "122", is the chapter number; and

(iii) the first one or two digits in the third part, "11", represents the subchapter number and the last two digits, "01", represent the individual rule number.

44.122.1101

44 = title number

122 = chapter number

11 = subchapter number

01 = individual rule number

(b) The entire number is referred to as the rule number.

(2) In some instances, a department may find it necessary to reserve chapters, subchapters, or rule numbers. This is shown in the appropriate location within the text.