Surely thread creep is warranted on this one, so...
During my spell on the kipper fleet we had lots of standards units (clearly an oxymoron)
Of course the GSU (group standards unit)
and the LSU (local standards unit)...
and the TSAT (training simulator assessment team - I think??)
and my favourite, the NSU (Nimrod Standards Unit, or Non-Specific Urethritis - take your pick!)