Enumeration Valid from Valid to Description Description of changes to predecessor
4 2009-02-01 2011-01-31 List of types of installations. .
3 2008-04-01 2009-01-31 List of types of installations. .
2 2007-08-01 2008-03-31 List of types of installations for waste treatment and storage. New separate distinctions for two types of installations.
1 2007-07-31 List of types of installations for waste treatment and storage.
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