3 The Commodity Board is authorized to regulate the marketing of eggs in interprovincial and export trade and for such purposes may, by order, with respect to persons and property situated within the Province of Manitoba, exercise all or any powers like the powers exercisable by it in relation to the marketing of eggs locally within that Province under the Act and the Plan, other than those powers that are exercised by the Canadian Egg Marketing Agency pursuant to the Farm Products Marketing Agencies Act and the proclamation and agreement made thereunder, as amended from time to time.