Planning Package (PP)
A Planning Package (PP) is a logical aggregation of future work within a control account that cannot yet be planned in detail at the work package or task level.
DoD Earned Value Management System Interpretation Guide (EVMSIG)
Planning packages (PPs) are best explained by understanding their relationship with the Performance Measurement Baseling (PMB).
The Performance Measurement Baseline (PMB) consists of three elements. The first is the Undistributed Budget (UB). This is a temporary holding budget that should be allocated as soon as practical to either the second PMB element, Summary Level Planning Packages (SLPPs), or the third and final PMB element, Control Accounts (CAs). SLPPs are traditionally established for far term work. Early in a contract, it would be unreasonable to expect a detailed CA with Work Package (WP) descriptions and detailed schedules for the manufacture of something that had yet to be designed. A top level budget and schedule are established in the SLPP. For near term and well defined work, earned value CAs are established. A CA may have hundreds of WPs and PPs. An EVM concept called a rolling wave is often used to move work from SLPPs to CAs and from CA PPs to more detailed CA WPs.