(12)For the designation of a benchmark as significant to be as transparent as possible, competent authorities or ESMA should issue a designation decision setting out the reasons why that benchmark is considered significant. Competent authorities should publish the designation decision on their website and should notify that decision to ESMA. For the same reasons, where ESMA designates a benchmark as significant upon a request of a competent authority, or on its own initiative, ESMA should publish the designation decision on its website and should notify the requesting competent authority thereof.