Tuition waivers for Faculty are submitted through the UBC Faculty and Staff Self Service portal at www.msp.ubc.ca
You will find them in the MyBenefits section - specifically "Tuition Waivers - Faculty". Once you have followed that link, the steps are:
Step 1: After logging into www.msp.ubc.ca, go to the 'Tuition Waivers Faculty'. Then click 'Faculty-Dependent Children Req.' link.
Step 2: Click the 'Add a New Waiver' tab
Steps 3-9: Fill out the form fields:
Step 10: Click the 'Ok' button
Step 11: Click the 'Balance Information' button