Who has the highest priority for authorization to use the flight deck observer seat?

The highest priority for authorization to use the flight deck observer seat is given to Transport Canada representatives. This priority is established due to the regulatory oversight that Transport Canada has over airline operations and safety. Representatives from Transport Canada are responsible for ensuring compliance with aviation regulations, conducting audits, and assessing flight safety; thus, their presence in the flight deck observer seat is crucial for oversight.

While operating relief pilots, Air Canada evaluators, and Vice President representatives may also have valid reasons to occupy the observer seat under specific circumstances, their roles do not carry the same regulatory authority as that of Transport Canada representatives. Therefore, the need for oversight and regulation mandates that those who represent the governing body of aviation safety take precedence when it comes to access to such a critical area during flight operations.