Countries restrict the use of foam concrete?

Countries restrict the use of foam concrete?
Friend, just contact with a lot of foam concrete will have such doubt: national restrictions on the use of foam concrete?Below small make up, and everyone generally explain this question:
Strength of foam concrete is not everything, it is no ordinary concrete is high, and not the durability of normal concrete.Foam concrete only applies to some of the common buildings, such as walls, roof of the building, and some needed to lighten the load and the structure of a certain intensity.Also, foam concrete production process cost is higher than ordinary concrete.
So, that is to say, foam concrete is only applicable to filling, roof insulation, fire protection, etc., not a substitute for common brick, for bearing!