Other Uses
- Paul Thomas Anderson, American filmmaker
- Planes, Trains and Automobiles, a 1987 American film by John Hughes
- Pohakuloa Training Area, a military training facility
- Point of total assumption, a contract term
- Preferential trading area, a type of trading bloc
- Pretoria, the administrative and de facto capital of South Africa
- Prevention of Terrorism Act, the name of several countries' Acts of Parliament
- Program test authority, after a construction permit but before a broadcast license
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