PMI is the certifying body for PMP certification. PMI conducts audits to ensure the authenticity of applications received. It is a procedure that involves the inspection of important documents and other materials essential for earning the PMP certification. After reviewing the exam application, PMI will send an audit notification to the candidate via email. The candidate must submit all the required documents within 90 days. After the documents are submitted, the time required for the audit process to complete is 5-7 business days.