The authors challenge sections 1,6 and 10 of Bill No.178 enacted by the Provincial Q on 22 December 1988, with the purpose of modifying Bill No.101, known as the charter of the French Language (Charte de la francais).....The official explanatory note preceding the text of the charter states that only French may be used in public billposting and in commercial advertising outdoors. it stipulates that this rule shall also apply inside means of public transport and certain setablishments, including shopping centres. The authors claim to be personally affected by the application of Bill No.178