| Acronym | Definition |
|---|
| PTAC➣Procurement Technical Assistance Center (US DoD) |
| PTAC➣Poids Total Autorisé en Charge |
| PTAC➣Parent Teacher Advisory Council (various locations) |
| PTAC➣Public Transit Advisory Committee (various locations) |
| PTAC➣Packaged Terminal Air Conditioning |
| PTAC➣Petroleum Technology Alliance of Canada |
| PTAC➣Poid Total en Charge (France) |
| PTAC➣Printing Technology Association of China |
| PTAC➣Postal and Telecommunication Appliances Corporation (China) |
| PTAC➣PhotoTelesis Tactical Communications (image exchange protocol) |
| PTAC➣Preparedness Technical Assistance Center (Dynamis) |