I would change that slightly. To recharacterize the entire ADP correction amount as catch-up, it must be less than or equal to the unused portion of the catch-up limit for the calendar year in which the plan year ends, as of the last day of the plan year. For example, if the catch-up eligible participant defers $26,000 in January 2020, you can't recharacterize any of the 4/30/2020 ADP correction as catch-up because the participant has already used up the entire 2020 catch-up limit before 4/30/20. While that kind of situation may be rare, I have seen it happen.