The IPTC provides a DTD and the Functional
Specification for its NewsML standard either for the
most current version as well as for previous versions
as they are still in use.
Current specification
covering ProgramGuideML 1.0-Release Candidate (released
June 2004)
download1) a
zipped
package of the current v1.0 Release Candate
version with all specifications.
The Specification section covers only documents
containing information that specify NewsML.
Documents that are supplementary to the standard
providing background information and educational
material to improve your understanding can be found
...
1) Browsers may add unwanted
characters to the file name for downloading, be aware
of additional strings like "[1]" or an
added file name extension like ".php"