The Environmental Protection Agency (EPA) is taking final action to approve a state plan submitted by the Oregon Department of Environmental Quality (ODEQ). This state plan submittal pertains to the regulation of nonmethane organic compounds from existing municipal solid waste (MSW) landfills. This state plan was submitted in response to the EPA's promulgation of Emissions Guidelines and Compliance Times for MSW landfills. This action is being taken under the Clean Air Act (CAA).