In this Part, unless the contrary intention appears:
"deferral day" means the day on which the deferring member attains the age of 55 years.
"deferral period" means the period that starts when the deferring member ceases to be entitled to parliamentary allowance and ends immediately before the deferral day.
"deferring member" has the meaning given by section 22DB.
"invalidity determination" means a determination under section 22DD.
"SIS regulations" means regulations under the Superannuation Industry (Supervision) Act 1993 .
"transitional general election" means the first general election after the commencement of this Part.