Authorized entities can find the listing at the ICAO Store (Doc 9811) .
Procedures for protecting the cockpit and preventing unauthorized access. icao doc 9811 pdf link
As a , Doc 9811 is not for general sale to the public. Distribution is strictly limited to: National Civil Aviation Authorities (CAAs) Airport Operators Aircraft Operators (Airlines) Steps to Request the Document: Authorized entities can find the listing at the
Provides broader training guidelines that complement security protocols. their official title
To purchase, you must often submit a formal request on official letterhead identifying the purchaser, their official title, and the specific reason for the request.