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What does HOI stand for?

HOI stands for Headquarters Operating Instruction (USAF, NORAD)

This definition appears somewhat frequently and is found in the following Acronym Finder categories:

  • Military and Government

See other definitions of HOI

Other Resources:
We have 28 other meanings of HOI in our Acronym Attic

Samples in periodicals archive:

They also developed a first-ever headquarters operating instruction that outlines a significantly streamlined process for future IDP/CZTR requests, should they be necessary.