The Benchmark Regulation will supersede the FCA's existing rules in MAR 8 and affect a wider set of firms than the FCA's current rules, namely: (i) benchmark administrators, who will need to be authorised or registered; (ii) benchmark contributors, who will need to meet additional requirements to ensure the integrity of their submissions; and (iii)  users, such as credit institutions, investment firms, UCITS and AIFMs that use benchmarks, will no longer be allowed to use a benchmark unless it is provided by an authorised or registered administrator in the EU or, in the case of third countries, the third country administrator has been recognised or the benchmark has been endorsed.