Ministeriële verordening nr 51561 van 05/08/1975 ref: Staatscourant nr 151 van 08/08/1975

This is a Dutch ministerial regulation from 1975. Based on the available metadata, it is a formal administrative act published in the official government gazette (Staatscourant). The specific impact and affected parties are not detailed in the provided metadata, but it represents a legal requirement or guideline issued by a Dutch ministry.