What does AR 55-80 stand for?

AR 55-80 stands for "Highways for National Defense"

How to abbreviate "Highways for National Defense"?

"Highways for National Defense" can be abbreviated as AR 55-80

What is the meaning of AR 55-80 abbreviation?

The meaning of AR 55-80 abbreviation is "Highways for National Defense"

What does AR 55-80 mean?

AR 55-80 as abbreviation means "Highways for National Defense"