Shipping Documents (Papers) are synonymous and can be found as follows:
Shipping Documents (Papers) provide vital information regarding the hazardous materials/dangerous goods to initiate protective actions *
The 4-digit ID Number may be shown on the diamond-shaped placard or on an adjacent orange panel displayed on the ends and sides of a cargo tank, vehicle or rail car.
* For the purposes of this guidebook, the terms hazardous materials/dangerous goods are synonymous.
** After January 1, 2013 in the United States, the identification number must appear first in the basic description. For example, "UN2744, Cyclobutyl chloroformate, 6.1, (8, 3), PG II". This is currently optional in Canada.