Employee contribution elections (pre and post-tax) to the CIRS 401(k) Savings Plan must be made by Members through Voya. If Members wish to elect catch-up contributions, they must complete the attached Catch-up Form and submit the employer. Catch-up contributions are additional pre-tax contributions that Members who will be age 50 or older by the last day of the calendar year can make in addition to the IRS regular pre-tax contributions.