What does TUO stand for?

Taupo - New Zealand - Airport symbol (OAG)

Technology Utilization Office - NASA

Technology Utilization Officer - National Aeronautics and Space Administration (MLEX)

Teuton Resources Corp. - Vancouver Stock Exchange symbol

Tucano - Language code (ETLW)

Tucson Observatory - Arizona - Seismograph station code, US Geological Survey (SEIS)