PSA

PSA is a three letter acronym which may stand for: Pacific Sociological Association Pacific Southwest Airlines, a former U.S. airline that used to fly passenger services inside California and to other nearby Western areas during the 1970s and early 1980s; its trademark was a smile drawn under their planes' cockpits Paralysis Society of America, a group whose activity is based on The Paralyzed Veterans Of America except supporting civilians Persistent sexual arousal syndrome Pharmaceutical S ...