PIA is among the few developing country airlines which are compliant to IATA Operational Safety Audit (IOSA) requirements and standards. The standards body for IOSA is based in Montreal, Canada. A typical IOSA Certification Audit is based on a check list comprising of +900 IATA Standards and Recommended Practices. Each IOSA audit has two years validity and an airline must pass through a series of periodic recertification audits to retain its IOSA registration status as per IATA Standards. PIA has successfully renewed its IOSA certification up to 24th June, 2011.