Pub. L. 108-199, div. F, tit. V, sec. 534

Sec. 534. None of the funds made available in this Act may be used to require a State or local government to post a traffic control device or variable message sign, or any other type of traffic warning sign, in a language other than English, except with respect to the names of cities, streets, places, events, or signs related to an international border.