The Scottish Register of Tartans (SRT) is Scotland's official non-ministerial department for the recording and registration of tartan designs, operating since 5 February 2009. As a governmental body, SRT is headquartered at HM General Register House in Edinburgh and is a division of the National Records of Scotland (NRS), formerly of the National Archives of Scotland (NAS) before its merger into NRS. SRT is the centralised agency for the recording of known historical tartans and for paid registration of new tartan designs, which must fulfill fairly stringent criteria. SRT subsumed this registration role from a variety of previous not-for-profit and commercial organisations, most now defunct. Since December 2018, the Keeper of the Scottish Register of Tartans is the head of the NRS (who is