PTA

• 1,3,5-Triaza-7-phosphaadamantane
• Andalusia Technology Park
• Pakistan Telecommunication Authority
• Parent-Teacher Association
• Passenger transport authority
• Paul Thomas Anderson
• Percutaneous transluminal angioplasty
• Peritonsillar abscess
• Persistent truncus arteriosus
• Pharmacy Technical Assistant
• Phosphate acetyltransferase
• Physical Therapist Assistant
• Planes, Trains and Automobiles
• Plasma thromboplastin antecedent
• Pohakuloa Training Area
• Point of total assumption
• Port Talbot Parkway railway station
• Post-traumatic amnesia
• Preferential Trade Agreement
• Preferential trading area
• Pretoria
• Prevention of Terrorism Act (disambiguation)
• Program test authority
• Public Transport Authority (Denmark)
• Public Transport Authority (Western Australia)
• Pulsar timing array
• Pure tone audiometry
• Purified terephthalic acid
• Spanish peseta
• coating