(54)As administrators of, and contributors to critical benchmarks are put under stricter requirements than administrators of, and contributors to, other benchmarks, the designation of benchmarks as critical benchmarks should be undertaken by the Commission or requested by ESMA and should be codified by the Commission. As national competent authorities have best access to data on, and information about, benchmarks they supervise, they should notify the Commission or ESMA of any benchmarks which, in their opinion, fulfil the criteria identifying critical benchmarks.