The DC-2013 Special Session titled Long-term Preservation and Governance of RDF Vocabularies will be sponsored by W3C and will focuses on issues related to the usability of RDF vocabularies in the long term (as defined in "decades") including continued access to documentation, inheritance of ownership and maintenance responsibility, and the continued resolvability of domain names. The usability of Linked Data relies on the ability to interpret what the data means, which depends on the availability of the RDF vocabularies used in the data. RDF vocabularies are created by a wide range of people and institutions, from individual researchers to national libraries and for-profit corporations, for a wide range of descriptive requirements. The oldest RDF vocabularies in existence are just fifteen years old. It is time to look systematically at how ownership and responsibility for today's vocabularies will pass to the next generation. For a fuller description, see http://dcevents.dublincore.org/IntConf/index/pages/view/vocPres. DC-2013 will be held in Lisbon 2-6 September 2013. The conference website can be found at http://purl.org/dcevents/dc-2013.