You can increase, decrease or stop your before-tax, after-tax, or Roth contributions at any time by calling Participant Services or through your Internet account. The last election you make before the payroll system computes your contribution will override any previous elections. Changes will be sent to payroll on a weekly basis and will be effective as soon as administratively possible, generally within two pay periods.
You can suspend or resume contributions at any time. When you resume your contributions, cash deposits to make up for the period of suspension will not be permitted. All contributions must be made by payroll deduction.