Do I need to uncatalog a volume after I scratched it?

Document ID : KB000113282
Last Modified Date : 06/09/2018
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Dropping a range of volumes and I will scratch them first, do I need to uncatalog the DSN from the OS/Catalog?
When a volume is scratched within TLMS a OS Catalog is issued and if the DSN and VSN matches, the DSN is un-cataloged.