PBT
PBT can refer to:
- Persistent, bioaccumulative and toxic substances
- Polybutylene terephthalate, plastic that is used as an insulator
- Provider Backbone Transport (PBT), IEEE 802.1 networking technology adding determinism to Ethernet
- Preliminary Breath Test
- Permian Basin Royalty Trust; "PBT" is the New York Stock Exchange ticker symbol
- Profit Before Tax; also known as pre-tax profit
- Pay by transaction
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