<prompt> Translate the following text to EnglishKwa mujibu wa kifungu cha 603 b iii na iv, Tume inasema kwamba inatumia baadhi ya ufafanuzi wa Tume ya ndogo ndogo kwa madhumuni ya uchambuzi wake na inahitimisha kwamba haiwezi kupima kwa kiasi kikubwa athari ambazo sheria iliyopendekezwa na marekebisho ingekuwa na wafanyabiashara wadogo na wakala.  <response>: With regard to sections 603biii and iv, the Commission states that it uses certain Commissionadopted definitions of small entities for purposes of its analysis and concludes that it is unable to quantify reasonably the impact that the proposed rule and amendments would have on small dealers and brokers. 