<prompt> Translate the following text to EnglishBila mpango wa kitaifa, kila jimbo la OTC litakubali mpango wa jimbo kwa jimbo, hasa kulingana na mpango wa California, isipokuwa jimbo linaweza kuonyesha kuwa linaweza kukidhi mahitaji ya Sheria ya Hewa safi kwa njia nyingine.  <response>: Without a national program, each of the OTC states would adopt a state-by-state program, mostly based on the California program, unless a state could show it could meet the Clean Air Act requirements by some other means. 