Protocols are reviewed within one business week of submission. If all the required materials are submitted and the protocol is approvable via expedited procedures it will also be approved within this timeline. If revisions or additional documentation is required then approval may take longer.
Does a project that is "exempt" require IRB review and approval?
If the project meets the definitions for Human Subjects Research then it does require IRB review and approval. A project that meets the criteria for "Exempt Research" is exempt from the requirements of the Common Rule but still needs to meet the Longwood University requirements for Exempt Human Subjects Research (see Standards and Procedures for Exempt Research).