 On 11 December 2010 the Brazilian Association of Atheists and Agnostics (ATEA) attempted to run a bus campaign with the slogan "Ateísmo – celebre a razão" ("Atheism – Celebrate reason"), but were prevented from doing so on buses in Salvador, Bahia and Porto Alegre.The agency responsible for bus ads in Salvador informed that they would not sign the ad contract for fear of lawsuits, while in Porto Alegre, the passengers' association barred the campaign as the city ordinance prevents that bus ads bear messages related to religion.Instead, billboards were placed outdoors.