As part of EPA’s strategy to learn more about new and emerging technologies and alternative methodologies for regulating emissions from municipal solid waste landfills, EPA opened a non-regulatory docket to gather input on ways to streamline, improve, and harmonize the current suite of emissions regulations that cover these sources. EPA has developed a series of white papers on new and emerging technologies, alternative approaches to regulating landfill emissions, and landfill work practice methodologies that may assist with future rulemaking.