Are you a professionally active engineer or technician?
A professionally active engineer is a registered engineer who is applying their engineering knowledge in an activity which involves third parties and thus where their engineering judgement may affect others or be relied on by others, or a registered engineer who expects to resume such activity in the foreseeable future. If you are retired but still applying your knowledge to engineering related activities then you are considered professionally active.
In order to retain your registered status as an EngTech, IEng or CEng it is important that you conduct and record your CPD. Of course how much professional development is required is determined by the individual and will naturally differ between a full time mid-career engineer and a retired member doing volunteer work.
If you are no longer professionally active, and not applying your engineering knowledge in a manner that affects others, then you are not required to keep a record of your CPD.
If you are unsure whether or not you would be considered professionally active, or how much CPD activity would be expected if operating in a reduced capacity, you can always contact the team at CPD@imeche.org.