ASL is also used ( sometimes with other sign languages ) in the Philippines , Singapore , Dominican Republic , Haiti , Puerto Rico , CÃ te d'Ivoire , Burkina Faso , Ghana , Togo , Benin , Nigeria , Chad , Gabon , Democratic Republic of the Congo , Central African Republic , Mauritania , Kenya , Madagascar , and Zimbabwe . Besides North America , ASL is also used , sometimes alongside indigenous sign languages , in the Philippines , Malaysia , Singapore , the Dominican Republic , El Salvador , Haiti , Puerto Rico , CÃ te d'Ivoire , Burkina Faso , Ghana , Togo , Benin , Nigeria , Chad , Gabon , the Democratic Republic of the Congo , the Central African Republic , Mauritania , Kenya , Madagascar , Zimbabwe , Barbados , Bolivia , China , Mauritania , and Jamaica .