Can I change my RMD options after filing my RMD Election Form (code TD39)?
You may change your RMD options by filing a new RMD Election Form. However, TRS must receive your new form at least 60 days before the expected RMD payment date, based on your elections on the previous form. (For example, if your RMD payment date would have been the last business day of December, TRS must receive a new form by the end of October.)