Request for Qualification & Quote, deadline 19/10/2021, for Yonge North Subway Extension Preliminary Design Business Case at Toronto. The Submission for this opportunity must be sent to Metrolinx through the use of MetrolinxMERX EBS. Contact Metrolinx, attn Josie Canzona, tel. +1 416-202-5645, email Josie.Canzona@metrolinx.com. Visit https://www.metrolinx.merx.com. Tender n. RQQ-2021-PPDD-546. Ref.n. 0000208417. 37/21.