Abbreviations beginning with a

ACTCAssociated Colleges of the Twin Cities
Regional » Cities

ACTCAustralian Counter-Terrorism Centre
Regional » Australian

ACTCDAAdvanced Card Technology Association of Canada
Community

ACTCMAmerican College of Traditional Chinese Medicine
Academic & Science

ACTCMPAlberta Counter-Terrorism Crisis Management Plan (Canada)
Governmental

ACTCOAssociation of Community Theatres Central Ontario
Community

ACTCOAssociation of Community Theatres - Central Ontario
Miscellaneous

ACTCQArithmetic and Trellis Coded Quantization (normal class coefficient encoding)
Academic & Science

ACTCSActive Thermal Control System
Academic & Science

ACTCSAlgorithms and Computational Tools for Complex Systems
Academic & Science

ACTDAfghanistan Center for Training and Development
Community » Development

ACTDAssociation of Courses in Theatre Design
Community » Associations

ACTDAdvanced Concept Technology Demonstration
Computing » Technology

ACTDAdvanced Concept Technology Demostrations
Computing » Technology

ACTDAdvanced Concept Technology Demonstrator
Governmental » Military

ACTDAutomated Command Training Division
Governmental » Military