the issue, the government of the Grisons decided in 1996 that Rumantsch Grischun would be used when addressing all Romansh speakers, but the regional varieties could continue to be used when addressing a single region or municipality. In schools, Rumantsch Grischun was not to replace the regional dialects but only be taught passively. The compromise was largely accepted by both sides. 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. The government of the Grisons then took steps to strengthen the role of Rumantsch Grischun as an official language. Since the cantonal constitution explicitly named Sursilvan and Engadinese as the languages of ballots, a referendum was launched to amend the relevant article. 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. Opponents of Rumantsch Grischun such as Renata Coray and Matthias Grünert argue, however, that if only those municipalities with at least 30% Romansh speakers were considered, the referendum would have been rejected by 51%, with an even larger margin if only those with at least 50% Romansh speakers were considered. They thus interpret the results as the Romansh minority having been overruled by the German-speaking majority of the canton. A major change in policy came in 2003, when the cantonal government proposed a number of spending cuts, including a proposal according to which new Romansh teaching materials would not be published except in Rumantsch Grischun from 2006 onwards, the logical result of which would be to abolish the regional varieties as languages of instruction. The cantonal parliament passed the measure in August 2003, even advancing the deadline to 2005. The decision was met by strong opposition, in particular in the Engadine, where teachers collected over 4,300 signatures opposing the measure, followed by a second petition signed by around 180 Romansh writers and cultural figures, including many who were supportive of Rumantsch Grischun but opposed its introduction as a language of instruction. Opponents argued that Romansh culture and identity was transmitted through the regional varieties and not through Rumantsch Grischun and that Rumantsch Grischun would serve to weaken rather than strengthen Romansh, possibly leading to a switch to German-language schools and a swift Germanization of Romansh areas.