| Abbreviation | Definition |
|---|---|
| PSVP | Public Service Vehicle Permit |
| PT | Panel Truck |
| PT | Passenger Traffic |
| PT | Performance Tuned |
| PT | Personal Transport |
| PT | Personal Transportation |
| PT | Personal Truck |
| PT | Personalised Transport |
| PT | Personalized Transportation |
| PT | Procedure Turn |
| PT | Public Transport |
| PTA | Prepaid Ticket Advice |
| PTA | Prior To Arrival |
| PTA | Public Transport Authority |
| PTAB | Parking Transportation Advisory Board |
| PTAC | Position Turn Altitude Clearance |
| PTAP | Pupil Transportation Association of PA |
| PTAP | Pupil Transportation Association of Pennsylvania |
| PTAR | Public Transportation Automated Reimbursement |
| PTB | Pave The Bay |