In European Union Croatian is recognized as single and specific language, atleast by institutions. There were in first some tendencies to implement CBS language as common for all "West Balkan", but Croatia insist on specific language. Which is a good thing. Even though they are simmilar, they are not the same language. Clasification of "same" language is product of 19. century when they were artificialy bring together because of need to unite Serbs and Croats. From three different dialects from Croatia, schoolars choosed štokavian because this dialect was very simmilar to Serbian. Serbian and Croatian are both slavic languages, both southslavic languages, mutually understandable but differnet in phonological, morphological, lexical and syntactic.