What does OPPE stand for?

Office of Plans and Program Evaluation (SAA)

Office of Policy, Planning, and Evaluation - Environmental Protection Agency (GFGA)

Office of Programming, Planning and Evaluation (SAUS)

Office of Program Planning and Evaluation - National Institutes of Health

Operational Propulsion Plant Examination - Navy (NVT)

Operations Planning Project Engineer - Deep Space Instrumentation Facility, NASA

Organic and Polymer Processing Experiment (SAUS)