This action is brought under the federal Clean Air Act, 42 U.S.C. §§ 7401–7671q, to compel the U.S. Environmental Protection Agency to take the statutorily required action of making findings under 42 U.S.C. § 7410(k)(1)(B), and publishing notice of those findings in the Federal Register, that the State of California has failed to develop and submit at least four separate nonattainment state implementation plan revisions to combat persistent violations of the 1997, 2006, and 2012 National Ambient Air Quality Standards for fine particulate matter in the San Joaquin Valley, California.