Loic Albert (CFHT) Title: The Canada-France Brown Dwarfs Survey (CFBDS) Abstract: Led by French and Canadian PIs, the Canada-France Brown Dwarfs Survey (CFBDS) makes use of RCS-2, CFHTLS as well as PI MegaCam images to cover approximately 1000 square degrees in the i and z bands. Its goals are to identify ultracool brown dwarfs (the infamous Y dwarfs) and obtain a large sample of BDs to trace their galactic distribution. J-band imaging and Gemini spectroscopic follow-ups are underway and already yielding their first results. So far, over 75 T dwarf candidates have been isolated based on their very red i-z colors, and about 20 have been followed up spectroscopically at Gemini with GNIRS and NIRI. CFBDS J005910.90-011401.3, now the coolest brown dwarf known (620+-25K) is the first exciting discovery of the CFBDS. The spectrum of CFBDS0059 shows a dip at 1.57 micron that is most likely attributable to ammonia absorption. If so, CFBDS0059 and ULAS0034 (the next coolest BD discovered by UKIDSS and independantly identified in the CFBDS) could represent the first T/Y transition objects. I will describe the survey strategy and goals and present the first results of the CFBDS.