For most students, the deadline to accept an offer of admission is either May 1 or June 1. Students should refer to the date specified in their letter of admission. Offers can be accepted through the Student Service Centre.
For UBC Degree-Specific Admission Requirements
http://you.ubc.ca/applying-ubc/canadian-highschools/#british-columbia
For UBC Degree-Specific Admission Requirements
http://you.ubc.ca/applying-ubc/canadian-highschools/#british-columbia