The current DCAT-AP draft already recommends the use of a few of the registers operated by the Publications Office.
In some cases, however, the recommendation is to use registers operated by organisations that are not official EU bodies or institutions. For instance, for IANA MIME media types, the recommendation is to use the service at http://mediatypes.appspot.com/ , since no equivalent register is operated by the Publication Office.
I wonder whether our colleagues from the Publication Office can provide the DCAT-AP WG with some feedback about the possibility of setting up specific registers or extending existing ones, if need be. For instance, referring to the example above, the Publication Office operates a register of "file types" , which includes just a subset of IANA MIME media types. Could this register be extended accordingly by the Publication Office?