The controls mentioned in articles L. 511-16 and L. 511-17 are carried out:
1° At the point of entry into the territory prior to any placing under a customs procedure;
2° When the goods are placed under one of the following customs procedures:
a) Transit;
b) Customs warehousing;
c) Inward processing;
d) Processing under customs control;
e) Temporary admission;
3° When they are intended for introduction into free zones or free warehouses.