Astrophysics Science Division 
Assistant Secretary of Defense 
Atrial Septal Defect 
Aeronautical Systems Division 
Administrative Services Division 
Aircraft Situation Display 
Autism Spectrum Disorder 
autism spectrum disorders 
Applied Science Division 
Assessment and Standards Division 
Acute Stress Disorder 
adjustable speed drive 
Allowable Stress Design 
Analysis and Support Division 
Architecture Summary Design 
Architecture Summary Document 
Asynchronous Data 
Atmospheric Sciences Department 
atrial septal defects 
autistic spectrum disorders 
Automated Software Distribution 
AUTOMATIC SYNCHRONIZED DISCRIMINATOR 
Avionics Systems Design 
Abbotsford School District 
Aberdeen School District 
Abington School District 
Academy for Science and Design 
Academy for Sports Dentistry 
Academy School District 
Accelerate Stop Distance