Three-letter language code per ISO-639-2 Enables the sender of a message to indicate, for each element, which action should be performed on the current element. The rules governing the allowed values can be found in the PMCP Standard. Used in a message of type "reply" with a status of "error" to indicate where and why an error occured Status of a reply message means that the request was valid XML but has not been processed yet means that the request was invalid XML and could not be processed means that the request was valid XML and has been processed with no error means that the request was valid XML but contained at least one error, described in the body of the PmcpMessage, using the "error" attribute. Type for an elementary error Specifies the format of private data to be carried in ATSC tables Type for an audioId attribute Type of the application described in this AIT sub_table (A/101 10.6.2.3) Specifies the format of a two-part or one-part channel number Type for one-part channel number for cable Type for two-part channel number (Major-Minor) Specifies the format of an MPEG-2 PID. Any sequence of well-formed private xml elements. Allows systems to carry additional private information in a PMCP message ATSC Private Information descriptor, used for sending private data in an ATSC table (A/53B Amendment 2, 5.7.3.4) Format Identifier registered by SMPTE Generic descriptor type, used for future extensions of the PSIP standard. All currently defined PSIP descriptors have their own associated type. Descriptor tag One string of a Multiple String Structure of PSIP (A/65B 6.10) MPEG-2 conditional_access_descriptor. Declares an EMM PID at the transport stream level and an ECM PID at the program or elementary stream level. Conditional access system ID EMM or ECM PID, depending on context Redistribution Control Descriptor (A/65B 6.9.13) Means that there is no redistribution control descriptor