This Standard includes requirements for field test instruments that are used to test balanced twisted-pair cabling as specified in the ANSI/TIA-568-C.0, ANSI/TIA-568-C.2 and ANSI/TIA-568- C.2-1 structured cabling standards. This Standard specifies the reporting and accuracy performance requirements of field testers for balanced twisted-pair cabling measurements. Level IIe, III, IIIe and 2G field tester requirements are specified in this Standard. This Standard contains methods to compare the field instrument measurements against laboratory equipment measurement specified in ANSI/TIA-568-C.2 for category 6A and below, and ANSI/TIA-568-C.2-1 for category 8. Measurement accuracy based upon the specifications or assumptions for key performance parameters is addressed.