Priester Aviation and Mayo Aviation have been added to The Air Charter Safety Foundation's Industry Audit Standard (IAS) registry. Priester Aviation acquired Mayo Aviation in September 2022.

Mayo Aviation president Brent Moldowan is pleased that the company has surpassed regulatory standards and maintained the ACSF's rigorous auditing standards for the seventh time since 2010. “Mayo is proud of our partnership with the ACSF and this achievement of the very rigorous IAS requirement,” he says. “I think our long-standing commitment to the ACSF mission and the high standards that the organisation demands speak for themselves. We're happy to publicise this validation to make our customers aware of how critically important we consider adhering to the highest safety standards.”

Priester Aviation chairman and CEO Andy Priester echoes the sentiment: “It just confirms how very serious our two companies are at creating a culture of safety, and achieving the absolute highest levels of it. And we know from long experience that the ACSF and its IAS represent the pinnacle of safety commitment.”

ACSF's thorough audit helps organisations measure best practices. President Bryan Burns says: “The Industry Audit Standard requires standards far above the minimum safety requirements. As such, it has led the industry in setting high-performing safety standards and has consistently increased the audit's safety performance evidence since its inception in 2009.

“Adding to my delight with congratulating Priester and Mayo on their IAS renewal is the fact that both Andy Priester and Bill Mayo are founding members of the ACSF, something we're all extremely proud of.”

Two years ago, the ACSF added new requirements to the Industry Audit Standard that evaluate an operator's compliance with FAR 14 CFR Part 5 SMS standards and ICAO Annex 19 safety management.