AR3 (Powder and Explosives) Prohibition and Isolation Zones in the Somme

Isolation zone and polygon created pursuant to the Act of 8 August 1929 concerning easements around shops and establishments used for the preservation, handling or manufacture of powders, ammunition, fireworks or explosives; see Articles L5111-1 to L5111-7 of the Defence Code.The plate of an easement is the space field (i.e. the geographical area) within which the servitude applies. This space field can be defined either in 2D or in 3D in particular in the particular cases of airport clearance easements, protection easements of radio transmission centres.