above aerodrome level 
Additional Authorization List 
Association of Assistant Librarians 
ATM Adaptation Layer 
above airport level 
acceptable ambient level 
Acceptable Ambient Limit 
additional authorizations list 
Aero-Acoustic Levitator 
anterior axillary line 
Applied Action Level 
Arctic Aeromedical Laboratory 
ATM Adaption Layer 
AARONSBURG AREA LIBRARY 
Above Aerodome Level 
Absolute Assembly Language 
Academia Argentina de Letras 
acceptable ambient levels 
Account Access Layer 
Acquisition After Launch 
ADAMSTOWN AREA LIBRARY 
Additional Authorized List 
Aid Association for Lutherans 
aircraft approach light 
Aircraft Approach Limitations 
Alaskan Region 
all aluminum 
allowable ambient levels 
Alloy Annotation Language 
Alternaria Alternata