<prompt> Translate the following text to EnglishMaelezo ya sheria zilizopendekezwa na ya mwisho yana mchanganyiko wa uchambuzi wa athari za udhibiti na Uchambuzi wa Uwezo wa Udhibiti wa Mwanzo na wa Mwisho, kwa mtiririko huo.  <response>: The preambles of the proposed and final rules contain a combined regulatory impact analysis with an Initial and Final Regulatory Flexibility Analysis, respectively. 