Iaido is commonly associated with either the FIK or the ZNIR, although there are many extant koryū which may potentially use the menkyo system of grading, or a different system entirely. Iaido as governed by the FIK establishes 10th dan as the maximum attainable rank, though there are no living 10th practitioners in Kendo, there still remains many in Iaido. While there are some living 9th dan practitioners of kendo, the All Japan Kendo Federation only currently awards up to 8th dan. Most other member federations of the FIK have followed suit, excluding Iaido.