CEA-708-D defines DTV Closed Captioning (DTVCC) and provides specifications and guidelines for caption service providers, distributors of television signals, decoder and encoder manufacturers, DTV receiver manufacturers, and DTV signal processing equipment manufacturers. CEA-708-D may also be useful in other systems. CEA-708-D includes the following:

a description of the transport method of DTVCC data in the DTV signal

a specification for processing DTVCC information

a list of minimum implementation recommendations for DTVCC receiver manufacturers

a set of recommended practices for DTV encoder and decoder manufacturers

The use of the term DTV throughout is intended to include, and apply to, High Definition Television (HDTV) and Standard Definition Television (SDTV).