When it comes to / As for
Indicates a condition or change in circumstances that has reached a certain point or stage (formal/literary).
Examples
最終的な決定にいたって、全ての意見が考慮された。
When it came to the final decision, all opinions were taken into account.
問題が深刻な状況にいたって、対策が必要だ。
As the problem reached a serious situation, measures are necessary.
結果にいたっては、私たちは全員満足だった。
When it came to the results, we were all satisfied.
Quick check
最終的な決定に___、全ての意見が考慮された。