<prompt> Translate the following text to EnglishSura ya 6 inachunguza upatikanaji wa rasilimali zinazohitajika kwa ajili ya ufungaji wa teknolojia ya SO2, NOx na mercury kudhibiti retrofit kwa muda na kupunguza uzalishaji mapendekezo chini ya Sheria ya Clear Skies.  <response>: Chapter 6 examines the availability of resources necessary for the installation of SO2, NOX, and mercury control retrofit technologies for the timing and emission reductions proposed under the Clear Skies Act. 