This Part applies to all new and existing dry cleaning facilities that use perchloroethylene (perc) and/or alternative solvent dry cleaning equipment not listed as an exempt activity under Part 201 of this Title. Water-based cleaning processes and those using only liquid carbon dioxide are exempt. In addition to the general provisions of this Subpart, Subpart 232-2 specifically applies to perc dry cleaning equipment whereas Subpart 232-3 specifically applies to alternative solvent dry cleaning equipment. Spot removers are regulated under Part 235 of this Title.