State-run SriLankan Airlines has renewed its registration under the IATA Operational Safety Audit (IOSA) and I ATA Safety Audit for Ground operations (ISAGO) for the years 2015-2016 in conformity with standards introduced by the International Air Transport Association (IATA) t o maintain aviation safety and quality.IOSA assess the airline on eight operational scopes and ISAGO level of conformity as a ground handling service provider at Bandaranaike InternationalAirport, Colombo.