ABPA - American Backflow Prevention Association


ASME - American Society of Mechanical Engineers


ASSE - American Society of Sanitary Engineers


AVB - Atmospheric Vacuum Breaker


AWWA - American Water Works Association


DC - Double Check Valve Assembly


DCDA - Double Check Detector Assembly 


EPA - Environmental Protection Agency


FCCCHR - Foundation for Cross Connection Control and Hydraulic Research


HBVB - Hose Bib Vacuum Breaker


IPC - International Plumbing Code


NFPA - National Fire Protection Association


PSIA - Pounds per Square Inch Absolute


PSID - Pounds per Square Inch Differential


PSIG - Pounds per Square Inch Gauge


PVB - Pressure Vacuum Breaker Assembly


RP - Reduced Pressure Principle Assembly 


RPDA - Reduced Pressure Detector Assembly


SVB - Spill Resistant Vacuum Breaker Assembly


TCEQ - Texas Commission on Environmental Quality


TSBPE - Texas State Board of Plumbing Examiners


UPC - Uniform Plumbing Code