This list contains all protocol questions (PQs), grouped by audited area. These protocol questions are the main tool used during the conduct of a USOAP CSA audit to assess the State's capability of safety oversight.
A lack of effective implementaion (LEI) per PQ was also calculated, taking into account the result of the first 150 audited States. The applicability rate indicates how many audits a PQ was applicable. Each PQ is also linked to one of the 8 critical elements as defined by USOAP.