<prompt> Translate the following text to SwahiliFurther, the Clear Skies Act amends certain provisions of Title I of the Clean Air Act that currently apply to the combustion units covered by the new Title IV emission caps.  <response>: Sheria ya anga safi inabadilisha baadhi ya vifungu vya Kichwa I cha Sheria ya Hewa safi ambayo kwa sasa inatumika kwa vitengo vya kuchoma vinavyofunikwa na mipaka mpya ya uzalishaji wa Kichwa IV. 