Prelaunch Automatic Checkout Equipment Plant Acquisition and Construction Equ… Police and Criminal Evidence Act Precision Analog Computing Equipment Programming Analysis Consulting Educat… Particles, Atmosphere and Chemistry Ex… Philadelphia Automated Communication a… Plant and capital equipment plasma assisted chemical etching Point-Ahead Compensation Experiment Power and Control Electronics Priority Access Control Enabled Program For Accelerated College Educat… Program of All-inclusive Care for the… AMPACE CORP. Pace Airlines Pacific Agricultural Cooperative for E… Pacific Alternate Command Element Pacific Atmospheric Chemistry Experime… Pacing and Clinical Electrophysiology Packaged CRAM Executive paired basic amino acid cleaving enzym… paired basic amino acid converting enz… Palm Application Compatibility Environ… Pan-African Campaign of Epizootics Parental Alliance for Choice in Educat… Parents and Community in Education Parliamentary Assembly of the Council… Partnership for Academic and Community… Passive Attitude Control Experiment