EPP

EPP may refer to:
 * Élan Power Products, a subsidiary of Élan Motorsport Technologies
 * Encrypted PIN Pad, a component of an automated teller machine
 * End-plate potential, a neuroscience term
 * Enhanced Parallel Port, one specification of the IEEE 1284 computer peripheral communication standard
 * Enhanced Performance Profiles, a PC memory specification
 * Engineering and Applied Science Programs for Professionals, the part-time graduate engineering component of the Johns Hopkins University G.W.C. Whiting School of Engineering
 * Environmentally Preferable Procurement or Purchasing; also Green Purchasing
 * Erythropoietic protoporphyria, a genetical disorder
 * European People's Party, a political party
 * Extensible Provisioning Protocol, an Internet protocol for communication between domain name registries and registrars.
 * Expanded Polypropylene, a form of foam polypropylene, used in energy absorbing applications such as; automotive vehicle bumper cores, seat cores, side impact bolsters, head impact bolsters, computer packaging and cushioning, dunnage, furniture cores, floatation, bicycle/motorcycle helmet cores, and airplane modeling and fabrication. Known for it's light weight, multiple impact protection, chemical resistance, thermal resistance, and durability.  Material is produced as a particle bead foam, and molded in plank or shape form using Compression Steam Chest Molding technique.  Density ranges from ~ 1.0 lb/ft3 (16 kg/m3) up to 18.72 lb/ft3 (300 kg/m3).
 * Extended projection principle, a linguistic theory
 * Ethical Purchasing Policy, an ethical business agreement

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