<prompt> Translate the following text to EnglishKama ilivyo chini ya kifungu cha sasa, kufuata kichwa IV haina athari, isipokuwa kama ilivyoainishwa wazi, matumizi ya mahitaji mengine ya Sheria ya hewa safi.  <response>: As under the existing provision, compliance with Title IV does not affect, except as expressly provided, the application of other requirements of the Clean Air Act. 