This joint resolution seeks to exercise congressional authority under chapter 8 of title 5, United States Code, to disapprove a specific rule submitted by the Environmental Protection Agency (EPA). The targeted EPA rule, published in 2009, granted the State of California a waiver of Clean Air Act preemption . This waiver allowed California to implement its own stringent greenhouse gas emission standards for new motor vehicles from the 2009 model year onward. By disapproving this rule, Congress intends to declare that the EPA's decision to grant California this waiver shall have no force or effect , thereby preventing California from enforcing these specific state-level emission standards.