Starting January 1, vehicles with Crit'Air 3 classification are banned in low-emission zones (ZFE) in cities like Lyon and Paris.

This move, part of France's "climate and resilience" law, aims to reduce pollution but has left many residents frustrated.

In Lyon, over 112,000 vehicles are affected, with some drivers unable to afford replacements.

Critics argue the ban disproportionately impacts low-income families, who rely on older cars for daily needs.

While exceptions exist, such as for night-shift workers, enforcement is tightening, with fines for violators.

The policy highlights the tension between environmental goals and social equity, as cities strive to meet EU pollution standards.