by Keith MacCauley
Orange banding was a mid-1980's initiative by Canadian regulators to provide quick visual indication of pressure type tank cars (pressure type cars typically transport more hazardous/volatile commodities). Rumor of the day suggested that a Canadian Government official observed this warning symbol while vacationing in Europe and thought that it would be a good idea back home. The theory was that at the scene of a derailment, emergency responders would be able to quickly establish which tank cars were transporting more hazardous materials. Under C.T.C. (Canadian Transport Commission, now known as Transport Canada) Regulation 79.100-21(h), all pressure type tank cars transporting Class 2 gases were required to equipped with a full length 12” wide orange band located approximately center of the car by July 1, 1990. Class 2 is regulatory grouping of compressed gases; i.e. commodities that are only liquid under pressure; chlorine, liquefied petroleum gases (LPG) and anhydrous ammonia are examples of Class 2 commodities. All eligible Canadian service tank cars, regardless of ownership, were required to comply. US Department of Transport (DOT) regulators did not adopt a similar requirement, and furthermore expected un-banded US cars to be allowed to operate in Canada under a mechanism known as ‘reciprocity’ (reciprocity is a regulatory mechanism whereby each country agrees to abide by certain selected rules of the other – thus a US un-banded car could operate in Canada or a Canadian banded car would be acceptable in the US). Given the regulatory confusion, lack of US support and widespread shipper resistance, the Canada only, requirement was ultimately dropped; but not until after several hundred cars had been ‘banded’. Part of the overall opposition to the orange band was that if a fire was part of the calamity, the visual indicator could be lost.






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