With respect to the data used for measurements, including data supplied by others, the actuary should refer to ASOP No. 23, Data Quality, for guidance.
3.6.1 Participants
The actuary should include in the measurement all participants reported to the actuary, except in appropriate circumstances where the actuary may exclude persons such as those below a minimum age or service level. When appropriate, the actuary may include employees who might become participants in the future.
3.6.2 Hypothetical Data
When appropriate, the actuary may prepare measurements based on assumed demographic characteristics of current or future plan participants.
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