MDI Transportation Guidelines - Polyurethanes - American ...

MDI transportation
g u i d e l i n e s
Appendix 2: Guidelines for the Unloading of Tank Trucks
(A Suggested Checklist)
This Appendix contains guidance for off-loading tank trucks with a suggested division of responsibilities
between the driver and receiver. Because of variations in the configuration of a customer’s facilities, the
specific activities involved, or the sequence in which they are conducted, may differ from what is described
in this Appendix.
The purpose of this Appendix is to demonstrate the complexity of the operation and the need for a clear
understanding of the division of responsibility between those involved.
The driver has a legal duty to protect the integrity of a hazardous material. The receiver has a duty to ensure
that product is safely discharged into the proper tank. Both should cooperate fully in the discharge process to
ensure that it is conducted safely.
U.S. Department of Transportation’s regulation under 49 CFR § 177.834 requires that throughout the entire
period of unloading and while the tank truck has unloading equipment attached, a qualified person must attend
the cargo tank unloading process to ensure safety. The current DOT attendance requirements demand “physical
on-site attendance by a person who is alert, is within 25 feet and has an unobstructed view of the unloading
operation.”
Copyright 2001, American Plastics Council
Appendix 2-1