Others
- Personal Security Detail or Protective Services Detail Military, or private security contractor unit tasked to protect a client
- Personal Security Detachment, U.S. Army unit assigned to protect VIPs
- Pesticides Safety Directorate, UK
- Philippine School Doha, a Filipino school in Doha, Qatar
- Plains Indian Sign Language, an endangered native sign language of North America
- Platform Screen Doors, doors used on the edges of underground railway platforms
- Plastic Surgery Disasters, a 1982 album by the Dead Kennedys
- Power Split Device, part of the Hybrid Synergy Drive on a Toyota Prius
- Program Service Data, also known as program-associated data, usually data sent along with an HD radio program
- Ford Power Stroke engine, the Ford turbo diesel engine available in the F250 / F350 line as well as other trucks
- Pennridge School District, a school district in Pennsylvania, near Philadelphia
- Prevention of Significant Deterioration of Air Quality
Read more about this topic: PSD