The main purpose of this legislative text is to allow Congress to disapprove a specific rule put forth by the Environmental Protection Agency (EPA). This rule involves the reclassification of certain major sources of air pollution as area sources under the Clean Air Act. The objective is to prevent this rule from taking effect, effectively nullifying the EPA's decision. Key provisions of this resolution state that Congress officially disapproves the EPA's final rule regarding the reclassification of major sources of air pollution.