Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym NIHHS is...

NIHHS is

  • Notification of Installations Handling Hazardous Substances

NIHHS is also in:

Acronym Definition Searched: ISA DVM MSA 78652 OYC PTTP SLE HCSSA RI KES FUBU 45999 TTE WCID BLP