TarMed is the name of the tariff structure for all doctors throughout Switzerland, and was introduced in 2004. TarMed contains about 4,000 tariff positions which label and assess services provided by doctors and merge tariffs for social insurance with all cantonal doctor tariffs. As well as fee for service tariffs for outpatient treatment, about a third of tariffs are covered by flat rates for inpatient services. The federal government only approves TarMed where fees for medical services are settled according to health insurance laws. Medical services are regulated by TarMed with tax points throughout Switzerland. However, the amount of remuneration per tax point varies from canton to canton.