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Spring Weight Restrictions 2022

Dear Customer,


Please see below notice received from CN:


To all Customers 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 in advance of the Quebec Government notice. While the Government of Quebec has not posted the official Thaw period dates, we are planning to have all heavy loads arrive in March prior to the start of restrictions. If the Government of Quebec issues an earlier date, we will adjust accordingly.

Spring thaw Zone 1 tentative date is March 21st 00:01 to April 29th 23:59
Spring thaw Zone 2 tentative date is March 21st 00:01 to May 13th 23:59
Spring thaw Zone 3 tentative date is March 28th 00:01 to May 13th 23:59



Please note that payload weights in equipment to be delivered by CNTL must be reduced to meet the requirements in tables below for shipments planned to arrive after the start dates noted above.

To assist our customers during this period of reduced payload:

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).

Note the shipping date will be referred to as the Reservation Date. CN’s online tools can assist in determining both the Reservation Date and Trip Plan.

In the event of an overweight load, CN may arrange for transloading, or use specialty equipment to deliver the load. Any required transloading will be done at the prevailing market rate. Charges for use of quad chassis are per tariff CN-9100 Item 8560 ($800 per unit plus drayage fees). To ensure that specialty equipment is not detained, all deliveries must be live-unloads. Any overweight arrangements will be completed only after receiving written confirmation that the payer understands the charges.

Overweight traffic delayed online, but shipped prior to the "Latest Shipping Date", will be delivered by CN without the application of overweight charges.

The following table shows the "Latest Shipping Date" relative to the start of CN’s Spring Weight Restrictions:

Table 1 – Latest shipping date for deliveries in Quebec’s Zone 1


Traffic Origin

Latest shipping date for Spring 2022


21 February


21 February




21 February


21 February


14 February


14 February


14 February


14 February


14 February


21 February


21 February


21 February


21 February

New Orleans

21 February


10 February


The maximum payload handled using CNR equipment during the Spring Weight Restriction period is:

Table 2 – Maximum payloads

(Shipment Payload prior to loading)


53ft Dry

49,100 lb

53ft Heat

47,700 lb

53ft Reefer

46,500 lb

40ft Ecotherm

51,300 lb

40ft Dry

52,500 lb

45ft Dry

50,400 lb

20ft Dry

51,600 lb


Table 3 - Maximum Gross weight
(Shipment maximum after loading)


Steer and drive weights cannot exceed


Front single axle

12,000 lb

Tandem axle

34,100 lb

Tri axle on 60 - inch spread chassis

46,300 lb

Total Gross weight

92,400 lb





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