Trudeau is to be investigated for a potential conflict of interest in receiving a free vacation from billionaire businessman Aga Khan and for using a private aircraft.
The maximum sanction that may be imposed for a violation of the Act is 500 Canadian dollars ($380) per violation.
On Thursday, Trudeau admitted to using the private helicopter belonging to Khan during the vacation.
Under Canadian law, the prime minister cannot use private aircraft without permission from the ethics commissioner unless required for official state business.
The Aga Khan's development foundation has business deals with Ottawa and regularly lobbies the foreign ministry.
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