R-410A than other refrigerants. R-410A systems thus require service personnel to use different tools, equipment, safety standards, and techniques. Equipment manufacturers are aware of these changes and require the certification of professionals installing R-410A systems. In addition, the AC&R Safety Coalition has been created to help educate professionals about R-410A systems. In accordance with terms and agreement reached in the Montreal Protocol (The Montreal Protocol on Substances that Deplete the Ozone Layer) the United States Environmental Protection Agency has mandated that production or import of R-22 along with other hydrochlorofluorocarbons (HCFCs) be phased out in the United States. In the EU
Full-service community schools in the United States magnet schools, and alternative schools, the full-service community school model is one of many educational reform efforts that are intended to increase student achievement, but the full-service community school model specifically focuses on the development of the community as a whole. A charter school receives public funds but is not subject to all of the rules, regulations, and statutes public schools must adhere to. A charter school is accountable to what is sent forth in its individual charter. A school voucher is a certificate issued by the government to allow families to apply it the cover the tuition at a