The International Standard for Business Aircraft Handlers (IS-BAH) is a set of industry best practices for business aviation ground handlers that was developed by the International Business Aviation Council (IBAC) and the National Air Transportation Association (NATA).
According to IBAC, the IS-BAH is based on the implementation of industry best practices blended through a progressive safety management system (SMS) appropriate to the scale of the GHSPs, fixed base operations (FBOs) and business aircraft handline agencies (BAHA).
IS-BAH is a voluntary programme and may be self-administered. Recognition for implementation of, and conformance to, the standards is accomplished through an auditing process that results in an IBAC certificate of registration.
More information is available on the IBAC and NATA websites.