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To: BNSF Carload Customers

Update to Policy Changes to Enhance Transportation Safety of Hazardous Materials Effective January 1, 2008

In a Marketing News on April 9, 2007, BNSF announced that it will provide discounted rates to shippers who transport toxic inhalation and poison inhalation hazardous commodities (TIH/PIH) in improved tank cars.

Effective January 1, 2008, tariff discounts for TIH/PIH commodities will be based on the most improved and enhanced tank car identified by the Association of American Railroads (AAR) as the DOT specification tank car 112J500W for anhydrous ammonia and 105J600W for chlorine, or any new DOT specification tank car that meets or exceeds this performance standard.

The following discounts to the published tariff will apply, beginning January 1, 2008:
TierTank Car DesignDiscount
1New AAR specification or equivalent$1,700
2Normalized steel, jacket, full head shield, constant contact side bearings$1,150
3Normalized steel, jacket, full head shield$1,050
4Non-normalized steel and/or no jacket and/or no full head shield and/or pre-1989 build$0

Retroactive Discount Credits
Responding to the concerns that our customers have expressed about the availability of the improved tank cars after the January 1, 2008, effective date, retroactive discount credits will be offered for any new DOT specification tank car 112J500W (anhydrous ammonia) and 105J600W (chlorine), or for any new DOT specification tank car meeting their performance standard, which are placed into service on BNSF during the period January 1, 2008 – December 31, 2009.

Procedures on how you can apply for the retroactive discount credits will be made available by August 1, 2007.

We are confident that this change serves to align our mutual interest to develop and use an improved tank car, while providing time for the industry to take delivery and begin to utilize the new equipment. We are committed to ensuring the safety of our employees, customers and the communities in which we operate.

If you have questions regarding this matter, please contact your Marketing Representative at 888-428-2673.

Your business is important to us. Thank you again for choosing BNSF as your transportation service provider.

If you have any questions, please send an email to