Shipping to/from the Province of Quebec: In order to avoid a potential backlog of heavy loads requiring special handling we are implementing our Spring Weight Restrictions based on the predicted dates the Quebec Government has issued. While these dates posted by the Government of Quebec are predicted dates only, we are planning to have all heavy loads arrive prior to the start of restrictions. If the Government of Quebec issues an earlier or later date, we will adjust accordingly.
Quebec:
Spring thaw Zone 1 tentative date is March 14th 00:01 to May 13th 23:59
Spring thaw Zone 2 tentative date is March 14th 00:01 to May 13th 23:59
Spring thaw Zone 3 tentative date is March 21st 00:01 to May 20th 23:59

CN will establish a "Latest Shipping Date" where customers may ship at regular payload weights from each terminal (based on the consignee receiving the traffic immediately upon arrival at the destination terminal).
For more information on the “Latest Shipping Date” and maximum payloads, please visit https://www.cn.ca/en/news/2022/02/spring-weight-restrictions-2022/