Referrals to MSS are initiated by the School Based Resource Team (SBRT) at one of the 6 mainstream high-schools in North Vancouver.

Students coming from out of district will need to first register with the school district at the NVSD Education Services Centre at 2121 Lonsdale Ave. (map link). All out of district requests for Mountainside Secondary School will be screened by the District Resource Team for appropriate fit, with priority given to students from the North Vancouver School District.