(1) Every rule must be assigned a name or catchphrase and a three-part numerical identifier, with each part separated by a decimal point. For example, if a rule is numbered 44.23.501: * "44" represents the title number assigned to the department or agency;
* "23" represents the chapter number;
* "5" (the first one or two digits in the third part) represents the subchapter number; and
* "01" (the last two digits) represents the individual rule number.
(a) The entire number is referred to as the rule number. When a Montana administrative rule is referred to in a rulemaking notice or in rule text, it shall be cited as "ARM (rule number)". For example, "ARM 44.23.501".(b) The name or catchphrase assigned to a rule must be a short phrase which summarizes the contents of a rule.