It's all in the instructions! http://www.cic.gc.ca/english/information/applications/guides/CIT0002ETOC.asp#language
CELPIP-General LS – a two-skills (listening and speaking) version of the CELPIP general test You must have achieved a score of:2H or higher (3L, 3H, 4L, 4H, 5 or 6) in listening and speaking;
(Canadian English Language Proficiency Index Program General Test (CELPIP-G) or Canadian English Language Proficiency Index Program General (Listening and Speaking) Test (CELPIP-G LS), (not the academic version). You must have achieved a score of 4 or higher (up to 12) in listening and speaking)