The audit itself doesn't assess the utility of safety management systems, but I think I can quite readily state that safety management systems are accepted worldwide as a best practice, not only in the aviation industry but also elsewhere in the transportation industry. It's used in the shipping industry. We have it in the rail industry as well, and in other industries. It actually started with the chemical industry, subsequent to the Bhopal disaster in India.
It's definitely seen as the most progressive way forward for improving safety and improving safety culture.