Power Steering Pressure 
Preventive Service Planning 
Personal Software Process 
Private Sector Program 
Programmable Signal Processor 
Payload Signal Processor 
Payload Support Plan 
perforated steel planking 
Physical Security Professional 
Project Surveillance Plan 
Paint Shop Pro 
paralytic shellfish poison 
Performance Shaping Parameters 
PIT STOP 
Planet Scan Platform 
Portable Service Processor 
Primary sodium pump 
Program Segment Prefix 
Program Support Plan 
Progressive Supranuclear Palsy 
Project Schedule Plan 
pancreatic stone protein 
paralytic shellfish poisoning 
Pastoral Support Programme 
Payload Specialist Panel 
Payphone Service Provider 
Payroll savings plan 
PCS Service Provider 
Performance Surveillance Plan 
phenolsulfonphthalein