Every spring, the same vigilance is required of dog owners. As of April 15, 2026, the forest leash rule comes back into effect across the entire French territory. This obligation, often overlooked or underestimated, can nonetheless be costly if neglected.
A leash is mandatory for dogs in the forest starting April 15
From April 15 through June 30, dogs must imperatively be kept on a leash in the forest, unless they are traveling on clearly marked roads, routes or trails. This obligation applies to all wooded areas accessible to the public, whether they are public or private. Concretely, a dog can no longer roam freely in the undergrowth during this period. Even if it stays close to its owner, it is considered an offense if it is not attached. Outside of this period, the regulation already requires that the animal not stray more than 100 meters from its owner.
This legal framework is not new. It rests on an old decree, established as early as 1955, and brought to the fore each spring. Yet, despite its longevity, it remains widely ignored by many walkers. If this obligation may seem restrictive, it primarily answers a major ecological objective. Between April and June, wildlife enters a particularly sensitive phase of its life cycle. It is the birthing season for many mammals, but also the nesting period for birds. A dog, even playful and without aggressive intent, can disrupt these fragile balances. By pursuing an animal or approaching a nest, it can cause the abandonment of a youngster or endanger an entire litter. This regulation aims precisely to limit these disturbances. The consequences are therefore not insignificant. A brief moment of freedom granted to a dog can have irreversible effects on certain species. That is why authorities insist each year on strict compliance with this rule.
A fine of up to 750 euros for owners
Disobeying this obligation does not come without consequences. Owners who let their dogs wander in the forest face a fine of up to 750 euros. This amount corresponds to a fourth-class contravention. In practice, the exact amount may vary, but the ceiling remains deterrent. Checks are carried out by various authorized agents, notably officers from the National Forestry Office. This sanction aims as much to punish as to prevent. It reminds us that forest walks carry responsibilities, including toward the environment.
In detail, the regulation distinguishes several situations. Dogs may remain off-leash only on clearly identified routes: forest roads, marked paths or trails. As soon as you move away from them, the leash becomes mandatory. This nuance is essential. Many owners wrongly think their dog can be free as long as it stays nearby. Yet the law is not based solely on distance, but also on the precise location of the walk. This rule applies to all dogs, regardless of size, breed, or behavior. Even a perfectly trained animal is affected.
Despite regular reminders, this obligation remains poorly known by the general public. Each year, the media highlight this information as spring approaches, signaling that violations remain frequent. Many owners still discover this rule only when it comes into force. A sign of information gaps, but also of a certain normalization of leash-free strolls.
