The powers conferred on the mayor by article L. 2213-4 do not prevent the representative of the State in the department from prohibiting, by means of a reasoned order, for several communes or for a single commune after formal notice has been sent to the mayor and has remained without result, access to certain roads or certain portions of roads or certain sectors of the commune or communes to vehicles whose traffic on these roads or in these sectors is likely to compromise either public tranquillity, or the protection of animal or plant species, or the protection of natural areas, landscapes or sites or their development for aesthetic, ecological, agricultural, forestry or tourism purposes.
In these sectors, the representative of the State in the department may, in addition, under the conditions provided for in the first paragraph, subject activities carried out on the public highway, with the exception of those that fall within the scope of a public service mission, to special requirements relating to the conditions of opening hours and access to certain places and permissible noise levels.
These provisions do not apply to vehicles used to carry out a public service mission and cannot be applied permanently to vehicles used for professional purposes of research, exploitation or maintenance of natural areas.