Thank you for joining and posting on the Bose Community!
The headset is EASA ETSO-C139 approved, you can read more about this here.
I hope this helps and if you have any further questions, please do let me know.
Thank you for the quick reply. For some reason when I click the link and enter my newly created email ID and password, the login fails. I asked to have a new password sent, but an email has not arrived.