This standard specifies a suite of conformance tests for system-level requirements of Ethernet Passive Optical Network (EPON) equipment@ defined in IEEE 1904.1 Package C. Purpose The purpose of this standard is to build upon the IEEE 1904.1 Package C EPON system-level interoperability standard and create a suite of conformance tests. Defining the exact test procedures will allow vendors@ network operators@ and independent testing facilities to achieve consistent results when testing EPON equipment for conformance with IEEE 1904.1 Package C.