Iddat period, in case of a divorced woman, if she is subject to menstruation, means:

The 1986 Act section 2(b)(i) defines iddat for a divorced woman subject to menstruation as three menstrual courses after divorce. The offered fixed six/nine-month or nine-course alternatives are not that definition. Separate branches govern a woman not subject to menstruation and one pregnant at divorce, so this answer should not be extended to those situations.