22. The civil administration shall use only French in signs and posters, except where reasons of health or public safety require the use of another language as well.
In the case of traffic signs, the French inscription may be complemented or replaced by symbols or pictographs, and another language may be used where no symbol or pictograph exists that satisfies the requirements of health or public safety.
The Government may, however, determine by regulation the cases, conditions or circumstances in which the civil administration may use French and another language in signs and posters.
1977, c. 5, s. 22; 1993, c. 40, s. 4.