What does DIROI stand for?
DIROI stands for "Directorate Operating Instruction"
How to abbreviate "Directorate Operating Instruction"?
"Directorate Operating Instruction" can be abbreviated as DIROI
What is the meaning of DIROI abbreviation?
The meaning of DIROI abbreviation is "Directorate Operating Instruction"
What does DIROI mean?
DIROI as abbreviation means "Directorate Operating Instruction"