The “CAO IRI Part 21” regulations include procedures for the approval of production organizations (Subpart G) known as Production Organization Approval (POA). The POA certificate is the recognition that a Production Organization fully complies with the requirements of the CAO IRI Part 21 Subpart G, and grants privileges for the organization to manufacture the new products, parts or appliances, and issue the authorized release certificate known as CAO IRI Form 1 for the manufactured items.