Which cisterns are there laws that must be checked?

All cisterns that contain flammable goods and have a volume that exceeds 1 m3 must be checked. On July 1, 2000, the law was passed that required all cisterns over 1 m³ up to 9999 l, regardless of location, to be checked.

ATTENTION! Cisterns outside above ground of 10m³ and larger must have been checked no later than 1 January 2002.