Romansh language the most comprehensive collection of Romansh words, which can also be used in the idioms with the necessary phonetic shifts. The signatories of "Pro Rumantsch" stress that Romansh needs both the idioms and Rumantsch Grischun if it is to improve its chances in today's communication society. In Switzerland, official language use is governed by the "territorial principle": Cantonal law determines which of the four national languages enjoys official status in which part of the territory. Only the federal administration is officially quadrilingual. Romansh is an official language at the federal level, one of the three official languages of the Canton
Romansh language and that any municipality is free to change its official language. In 2003, Romansh was the sole official language in 56 municipalities of Grisons, and 19 were bilingual in their administrative business. In practice, even those municipalities which only recognize Romansh as an official working language, readily offer services in German as well. Additionally, since the working language of the canton is mainly German and many official publications of the canton are available only in German, it is virtually impossible for a municipal administration to operate only in Romansh. Within the Romansh-speaking areas, three different types of educational models can