ASRL-RTP Regional Air Pollution Study (SAUS)
RADAR-Absorbing Primary Structure (MCD)
Radar Automatic Plotting System (SAUS)
RADAR Prediction System (MCD)
RADAR Proficiency Simulator
Radar Protection System (SAUS)
Radioactive Argon Processing System (NRCH)
Radiologist, Anesthesiologist, and Pathologist (HCT)
Rapid Acute Physiology Score (SAUS)
Rate and Position Sensor (IAA)
Real Application on Parallel Systems (SAUS)
Realtime Analysis and Prediction of Storms (SAUS)
Recovery Access Presentation System (GAVI)
Regional Air Pollution Studies (or Study) (SAUS)
Regional Air Pollution Study - Environmental Protection Agency
Regional Atmospheric Pollution Study (SAUS)
Regulated Air Pressure System (MCD)
Regulatory Affairs Professionals Society (EA)
Reliable Acoustic Path SONAR (MCD)
Remedial Action Priority System (SAUS)
Remote Access Power Support (NITA)
Remote Access Power Support system (SAUS)
Remote Applications Protocol Suite (ACII)
Remote Area Power Supply
Resource Analysis and Planning System - DoD (DOMA)
Retired Annuitant Pay Statement - DoD
Retired Annuitant Pay System (SAUS)
Retired Army Personnel System
Retiree Annuitant Pay System
Retrieval Analysis and Presentation System - Computer science
Right Aft Propulsion System - Aerospace (GFGA)
Risk Appraisal of Programs System
Role Activity Performance Scale - Mental health
Rotary Phase Shifter (SAUS)
Rotating Azimuth Plane Scan - Climatology (CERES)
RPV Advanced Payload System (SAUS)