Peer reviews are performed by internal auditors from other organizations. Arrangements should include at least three peer audit departments. Although more cost-effective than paying a team, companies must have the human resources available to coordinate and perform peer reviews.

Serving as a liaison for the peer review:
Audit Assessment Group can be engaged to facilitate, manage, and/or coordinate the arrangement. This provides a more independent and objective review. Peer review arrangements may be structured in a manner that minimizes independence concerns, but care should still be taken to ensure an independence impairment does not arise. Hiring a consultant to oversee the arrangement can help overcome any independence issues.