Optical network terminals, optical network units and optical...

Optical network terminals, optical network units and optical line terminals are discussed as equipment receiving and transmitting data, supporting classification under CTSH 8517 62 rather than the residual CTSH 8517 69. The notes explain that installation at a subscriber's premises does not by itself justify residual classification, and that an advance ruling for another importer does not control a separate classification dispute. They also address exemption claims under notifications amended during the disputed period, requiring application of the version in force at the relevant time and allowing examination or cross-examination of relied-on expert evidence. Liability to confiscation for alleged misdeclaration is identified as requiring separate consideration where specifically challenged.