Thrift Savings Plan 
Technical Support Package 
Thrift Saving Plan 
Telecommunications Service Priority 
Training Support Package 
Training Support Packages 
Team Software Process 
Telephony Service Provider 
Teleprocessing Services Program 
total suspended particulate 
Transportation Service Provider 
Twisted Shielded Pairs 
Texture and Shading Processor 
teaspoon 
temperature-sensitive parameter 
Test Software Program 
Time and Space Processing 
Time Synchronization Protocol 
total suspended particulates 
Traffic Service Position 
Traveling Salesman Problem 
Tactical Service Provider 
Technical Steering Panel 
Technical Support Planning 
Telematics Service Provider 
Temperature Sensitive Paint 
Thrift Savings Program 
Time Stamp Protocol 
total serum protein 
total suspended particles