U.S. and Canadian Rating Region Tables (RRT) and Content Advisory Descriptors for Transport of Content Advisory Information Using ATSC Program and System Information Protocol (PSIP)
CEA-766-C augments ATSC A/65C and designates a) the RRT which provides the receiver with the
definition of the rating system and b) the Content Advisory Descriptors which provide the receiver with the
specific program rating for each program. Specifically, CEA-766-C specifies the exact syntax to be used to
define the U.S. and Canadian Rating Region Tables (RRT) in accordance with ATSC A/65C Section 6.4, as
well as the exact syntax to be used in the Content Advisory Descriptors that convey the rating information for
each program in accordance with ATSC A/65C Section 6.9.3. Thus DTV receivers are able to block
unwanted programs as determined by the user.
CEA-766-C does not indicate and is not meant to indicate techniques or procedures for blocking at the DTV
receiver (for example, remote control, other human interface devices, on-screen displays and/or graphical
user interfaces). See Annex A for related FCC regulations.