DT/MON stands for Detector-Tracker/Monitor
DT/IOT stands for Development Testing/Initial Operational Testing
DT/FP stands for Developmental Test/Free Play
DT/CEP stands for Differential Test of Conduct and Emotional Problems
DT-UTD stands for Discrete-Time Uniform Theory of Diffraction
AFFTU stands for Alternative Fuels Field Test Unit (portable laboratory; Air Products and Chemicals, Inc.)
AFFUG stands for Atlanta Flash/Flex User Group
AFFU stands for Adoption and Family Finding Unit (Norfolk County Council; UK)