Association of Computer Support Specialists
Audio Cascading Style Sheets
Auxiliary Crane Ships
Access Control Systems
Acoustics Speech and Signal Processing
acute coronary syndromes
acute serum sickness
acyl-CoA synthetases
Advisory Council on Social Security
Aeronautical Chart Service Section
Africa Center for Strategic Studies
African Crop Science Society
Air Combat and Surveillance System
Air Contract Support System
Alcatel Certified Switch Specialist
Anglo-Chinese Secondary School
anterior cervical spine surgery
Association of California State Supervisors
Association of Canadian Security Services
Association of Colleges and Secondary Schools
Aural Cascading Style Sheets
Automated clearing settlement system
Automatic Continuous Spectrum Stabilization
Automatic Control Society of Slovenia
Aviation Communication & Surveillance Systems
African Center for Security Studies
Antenna Control Servo System
Arab Council for the Social Sciences
Asociación de Conservación para la Selva Sur
Avaya Certified Support Specialist