The SI-1b, Statement of Sickness must be completed by your doctor or other qualified medical provider (see the section Medical Statements). If possible, have your doctor complete the statement while you are at his or her office, rather than leaving the form for completion. If you must leave the form for completion, explain to your doctor that the form is needed in order for you to receive bi-weekly benefit payments and that the form must be received by the Railroad Retirement Board within 10 days of the first day you became sick or injured or you may lose benefits.
Do not separate the SI-1b, Statement of Sickness from your SI-1a, Application for Sickness Benefits.