NISO Z39.96 The Journal Article Tag Suite (JATS): What Happened to the NLM DTDs?

In creating PubMed Central (PMC) , the National Center for Biotechnology Information (NCBI) at the National Library of Medicine (NLM) needed a common format, with a single Document Type Definition (DTD), for all content in PMC. The first version of the NLM DTD was made available to the public in early 2003, and it quickly became the de facto standard for tagging journal articles in XML even outside the NLM. As usage grew, users and potential users started asking about formalizing the article models as a standard with the National Information Standards Organization (NISO). Work on the NISO standard began in late 2009, and the Journal Article Tag Suite was released as a Draft Standard for Trial Use as NISO Z39.96 in March 2011.