(1) Following the text of each rule is a note that shows the history of the rule. For all actions taken on a rule after July 25, 1977, the following elements are included in the order shown:

(a) the MCA citations giving authority for the rule;

(b) the MCA citations implemented (IMP) by the rule;

(c) the action type indicated by the following abbreviations:

(i) NEW denotes a new rule;

(ii) AMD denotes an amendment to a rule;

(iii) REP denotes a rule is repealed;

(iv) TRANS denotes a rule is transferred by legislative action or transferred to a different location within a title;

(v) EMERG denotes emergency action;

(A) Register information and the effective date are not given for emergency actions; and

(vi) TEMP denotes temporary rule before becoming a permanent rule;

(d) the year and page number of the Register in which the adoption notice was published; and

(e) the date the rule action became effective.

(2) The information in the history note traces the development of a rule and its changes. Each adoption notice refers to the Register page number and issue date of the corresponding proposal notice. A review of all notices published regarding a rule action explains the progression of rule changes.

(3) Action taken on a rule before July 25, 1977, is indicated only by the abbreviation of the action and the effective date of action.