The Catalan manual alphabet is used in Catalan Sign Language but was not officially recognized as one of Catalonia's official languages until 3 June 2010 when Law 17/2010 of the Catalan sign language (LSC) was approved by the government.
A specific alphabet, tailored for Catalan Sign Language, has been adopted but wasn't formally recognized as an official language in Catalonia until June 3, 2010, with the passage of Law 17/2010 on the Catalan Sign Language.