As of 1st jan 2021 Motorhomes must display blind spot notices
see here (French website) https://www.service-public.fr/particuliers/actualites/A14499
Translation from google
This signage must be affixed on the sides and at the rear of the vehicle in order to be visible to cyclists, pedestrians and users of personal vehicles traveling on public roads. They are not always aware of the impossibility for the driver of the truck to perceive their presence, which causes sometimes fatal accidents, for example when the driver plans to turn while a cyclist is present on the side of the vehicle. This obligation applies to heavy vehicles traveling in an urban environment. It does not concern agricultural and forestry vehicles, winter service vehicles and intervention vehicles of the services managing highways or dual carriageways which are not intended to operate in dense urban environments. Failure to comply with this obligation is penalized by a fourth class fine. The model of the signage and its methods of affixing will be fixed by a forthcoming decree of the Minister responsible for Transport and the Minister responsible for Road Safety.
see here (French website) https://www.service-public.fr/particuliers/actualites/A14499
Translation from google
Heavy goods vehicles: installation of a blind spot signaling device
Posted on December 03, 2020 -
Directorate of legal and administrative information (Prime Minister) Illustration 1 Credits: © Road Safety Illustration 1
Bikes, two-wheelers, motorcycles, scooters, scooters, hoverboards, gyropods, monowheels ... are always less visible than a car. With their smaller size, they are often placed in the blind spots of heavy goods vehicles (trucks, buses, coaches, etc.). In order to strengthen the protection of vulnerable users traveling on public roads, a blind spot signaling device must be installed on heavy vehicles from January 1, 2021. Provided for by the mobility orientation law of December 2019, it has just been implemented. 'be decided by a decree published in the Official Journal on November 19, 2020. Vehicles over 3.5 tonnes (goods transport vehicles and passenger transport vehicles) must be fitted with signage showing the position of blind spots as of January 1, 2021.
This signage must be affixed on the sides and at the rear of the vehicle in order to be visible to cyclists, pedestrians and users of personal vehicles traveling on public roads. They are not always aware of the impossibility for the driver of the truck to perceive their presence, which causes sometimes fatal accidents, for example when the driver plans to turn while a cyclist is present on the side of the vehicle. This obligation applies to heavy vehicles traveling in an urban environment. It does not concern agricultural and forestry vehicles, winter service vehicles and intervention vehicles of the services managing highways or dual carriageways which are not intended to operate in dense urban environments. Failure to comply with this obligation is penalized by a fourth class fine. The model of the signage and its methods of affixing will be fixed by a forthcoming decree of the Minister responsible for Transport and the Minister responsible for Road Safety.