PLAA
| Acronym | Definition |
|---|---|
| PLAA | Poor Law Amendment Act |
| PLAA | Privileged Level Access Agreement (US DoD) |
| PLAA | Professional Licensure Augmentation Account (Pennsylvania) |
| PLAA | Professional Locksmiths Association of Alberta |
| PLAA | Poly-L-Aspartic Acid |
| PLAA | Primary Language Arts Assessment |
| PLAA | Public Lands Access Association (Montana) |
| PLAA | Present Level of Academic Achievement (student performance) |