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Forest product guides

​​​​The following guides are mandatory general loading requirements that we require in every shipment offered for movement on our lines.​ By following these requirements, you will reduce or eliminate any damage to your product during shipment. 

Closed car ship​ments

These rules have been formulated for the purpose of providing safe methods of loading closed cars and must be observed. The primary purpose of these rules is safe transit of the rail car from origin to destination.

AAR Circular No. 42-K : "General Rules Covering Loading of Carload Shipments of Commodities in Closed Cars"

Loading, blocking and br​​​acing of freight in closed trailers and containers

These rules which apply both to trailers and containers regardless of shipping plan used. Reference to, or illustrations of, trailers in this publication includes both containers and trailers.

AAR Circular 43-E  "Rules governing the loading, blocking and bracing of freight in closed trailers and containers for TOFC/COFC service"

These rules apply to shipments transported in Canada, U.S., and Mexico.


We have, in association with the AAR, has set a standard on Air Bags or Disposable Inflatable Dunnage Bags. A level 5 bag is the only standard and approved bag for paper and all other high density loads. Please ensure that your order only utilizes these bags to meet the CP mandatory requirements.​

Doorway protec​​tion for baled paper products in boxcars

Please log onto to see the AAR Publication for detailed information:

Publication Title: General Information Series No. 665 - "Doorway Protection for Scrap Paper Bales in Boxcars"

    Wood Packaging Materia​l Enforcement  - Import regulation for wood packaging material (WPM)

    This rule requires WPM, such as pallets, crates, boxes, and dunnage used to support or brace cargo, to be treated and marked. In cases of noncompliance, the WPM will be subject to immediate export along with the accompanying cargo.

    The approved treatments for wood packaging material are 

  1. Heat treatment to a minimum wood core temperature of 56ºC for a minimum of 30 minutes or 
  2. Fumigation with methyl bromide. 

    To certify treatment, the WPM must be marked with the International Plant Protection Convention (IPPC) logo. Paper certificates of treatment will no longer be required or accepted.

    For more information, visit the U.S. Customs and Border Protection website 

    IPPC-ISPM 15 Wood Packaging - USA-Canada as of September 16, 2005

    All wood packaging must meet IPPC-ISPM 15 Regulations as implemented on September 16, 2005.  

    It was agreed that Mexico would be regulated by both U.S. and Canada due to their access to exotic timbers which may carry exotic pests. Therefore, Mexico has been asked to meet the IPPC-ISPM 15 regulation when shipping to USA and Canada. In return U.S. and Canada will provide IPPC-ISPM 15 regulated wood packaging when shipping wood packaging to Mexico.

    The U.S. and Canada have mutually agreed not to regulate wood packaging moving between these two countries, but rather to recognize that the existing pest specific regulatory controls already in place as sufficient protection.

    Additional details on the requirements may be found on the following websites:

 Need more info?

Our Damage Prevention and Claims Services team provides best practice, approved load patterns, quality audits and specialized customer or commodity training programs.

Contact us by email at