A further recommendation in 1999, known as the "Haltinger concept", also proposed that the regional varieties should remain the basis of the Romansh schools, with Rumantsch Grischun being introduced in middle school and secondary school. Source: Internet
Additionally, the standardized variety Rumantsch Grischun intended for pan-regional use has been introduced since 1982. Source: Internet
Coray (2008). p. 173 In the referendum, which took place on June 10, 2001, 65% voted in favor of naming Rumantsch Grischun the only official Romansh variety of the Canton. Source: Internet
Coray (2008). p. 183 The government of Grisons then took steps to strengthen the role of Rumantsch Grischun as an official language. Source: Internet
In 1986, the federal administration began to use Rumantsch Grischun for single texts. Source: Internet
In schools, Rumantsch Grischun was not to replace the regional dialects but only be taught passively. Source: Internet