Radiation Protection Division 
Relative Percent Difference 
Regulatory Policy Division 
Radar Planning Device 
Random Pulse Discrimination 
RAPID 
reactor plant designer 
removable partial denture 
Retarding Potential Difference 
Return Path Demodulators 
Road Policing Department 
IATA code for Rice Lake Regional Airpo… 
Radcliff Police Department 
Radiation Protection Dosimetry 
Raleigh Police Department 
Ramapo Police Department 
RAMP Piping Design 
Randolph Police Department 
Rantoul Police Department 
Rapid Positioning Data 
Rapid Prototyping Development 
Raton Police Department 
Reactor plant design 
Reading Police Department 
realized probability of dying 
Recognition-Primed Decision 
Record of Professional Development 
Recovered Personnel Division 
Rector Police Department 
Redfield Police Department