A directive-change is any of the following: (1) the enactment, repeal, or amendment of a mutable directive; (2) the enactment, repeal, or amendment of an amendment of a mutable directive; or (3) the transmutation of an immutable directive into a mutable directive or vice versa.

(Note: This definition implies that, at least initially, all new directives are mutable; immutable directives, as long as they are immutable, may not be amended or repealed; mutable directives, as long as they are mutable, may be amended or repealed; any directive of any status may be transmuted; no directive is absolutely immune to change.)