parts per million 
Pulse Position Modulation 
pulse per minute 
Policy and Procedures Manual 
pages per minute 
parts per minute 
Positions and Proper Motions 
pulse-phase modulation 
part per million 
Periodic Permanent Magnet 
Periodic Pulse Metering 
Product Portfolio Management 
parent partition mapping 
Path Probability Method 
Peak Program Meter 
peak programme meter 
Perl Package Manager 
Personal Procurement Moves 
Personally Procured Move 
Position and Proper Motion 
Precision Power Monitor 
Primary Propulsion Manager 
Prime Period of Maintenance 
professional practice model 
Project and Portfolio Manager 
Project Portfolio Management 
Pseudo-Permanent Magnet 
Pulse Phase Modulation 
Pulses Per Minute 
INVESTMENT GRADE MUNICIPAL INCOME FUND