What does HISS stand for?

Hanford Inactive Site Surveillance (SAUS)

Hanford Inactive Site Survey (SAUS)

Healthcare Imaging Services - NASDAQ symbol

Helicopter Icing Spray System

Helicopter Inflight Spray System (MCD)

Heritage Information Statistical System (SAUO)

Herpetological Information Search Systems

Hierarchical Interactive Schematic System (ACAE)

High-Intensity Sound Simulator

High-Intensity Sound System

Holographic Ice Surveying System (PDAA)

Horizon IR Surveillance Sensor (SAUS)

Hospital Information Support System (WDAA)

Hover Infrared Suppressor System (SAUS)