PCAS may refer to:
*
Palomar Planet-Crossing Asteroid Survey
The Palomar Planet-Crossing Asteroid Survey (PCAS) was an astronomical survey, initiated by American astronomers Eleanor Helin and Eugene Shoemaker at the U.S Palomar Observatory, California, in 1973. The program is responsible for the discovery ...
, astronomical survey
*
Patient-controlled analgesia methods
*
Persistent Close Air Support
Persistent Close Air Support (PCAS) is a DARPA program that seeks to demonstrate dramatic improvements in close air support (CAS) capabilities by developing a system to allow continuous CAS availability and lethality to Joint Terminal Attack Cont ...
* Personal Carbon Allowances, a concept in
Personal carbon trading
*
Polytechnics Central Admissions System
The Polytechnics Central Admissions System (PCAS ) was an administrative body handling admissions in England and Wales to most courses at polytechnics and some other higher education institutions for the entry years 1986 to 1992. It ran in paralle ...
*
Portable Collision Avoidance System
* Postgraduate Certificate in Antarctic Studies at
University of Canterbury
The University of Canterbury (UC; ; postnominal abbreviation ''Cantuar.'' or ''Cant.'' for ''Cantuariensis'', the Latin name for Canterbury) is a public research university based in Christchurch, New Zealand. It was founded in 1873 as Canterbur ...
*
Post-Cardiac Arrest Syndrome
{{Disambiguation