After the IRB reviews and approves your protocol, informed consent, and associated documents, you should receive:
A. A phone call telling you the study can now proceed.
B. A personal visit from the IRB chair telling you how excited he/she is about your research.
C. Written notification of the IRB decision and the approved versions of the protocol and informed consent forms.
D. Nothing. If you do not receive a response in 30 days, you can proceed with your study.