Notice of Determination

March 25, 2025 – ADM Aéroports de Montréal has determined that the project for the relocation of Air Canada's premises and of a dedicated parking space for airport operations at YUL Montréal-Trudeau International Airport is not likely to cause significant adverse environmental effects by applying the mitigation measures provided for in the project.

This determination is based on the following factors:

• Mitigation measures that are technically and environmentally feasible below;
• Community knowledge;
• Knowledge and impacts on the rights of Indigenous peoples.

The mitigation measures considered in this determination are as follows:

• Design heating, ventilation and air conditioning systems to be energy efficient, without the use of natural gas.
• Integrate charging stations for electric GSE vehicles.
• Construct a building with an adaptable design, allowing for future reuse or reconfiguration.
• Maintain the paths taken and apply dust suppressants to prevent dust.
• Apply gravel to high-traffic areas.
• Use electric vehicles if possible.
• Limit the speed to 10 km/h.
• Avoid idling vehicles.
• Ensure the proper functioning of vehicles/equipment and their anti-pollution systems.
• Use less noisy or soundproof equipment and maintain silencers and catalytic converters.
• Position fixed equipment away from buildings.
• Minimize vehicle reversing and equip equipment with white noise or broadband reversing alarms.
• Avoid slamming the back panels when unloading equipment.
• Establish a traffic pattern and restrict traffic.
• Erect a temporary noise barrier.
• Raise awareness among workers about the issue of noise.
• During the work, if water is generated, it must be sent to a facility to filter the sediment before it is discharged.
• Protect ditches and drains from construction site sediment (e.g., sediment barriers, barges, etc.).
• Check the condition of the equipment regularly.
• Fill up the supplies before entering the site.
• Have a spill response equipment kit available and educate workers.
• Manage contaminated soils in accordance with applicable laws and regulations.
• Keep an 8 m radius around the trees and a slightly wider radius between the work area and the side of the trees facing them to protect them.
• Sharply cut the roots and branches extending into the excavation area.
• Avoid traffic and the deposit of materials on vegetation.
• Restore compacted areas.

Consequently, ADM Aéroports de Montréal may exercise its powers to enable the project to be carried out.