Over the years, there has been confusion about whether loading, unloading, and storage preceding or following the movement of hazardous materials in transportation are part of transportation in commerce, and thus covered by the Hazardous Materials Regulations (HMR). With a final rule published in the October 30, 2003 Federal Register, the Research and Special Programs Administration (RSPA), an agency of the U.S. Department of Transportation (DOT), revised the HMR to clarify the applicability of the HMR.
The changes restate the status quo as it was reflected in regulatory interpretations, except for the tank car unloading. In this action, RSPA:
To clarify applicability of the HMR, RSPA separated regulated functions into three categories:
Some regulated functions are listed both in the pre-transportation functions category and the transportation functions category. For example, loading is considered a pre-transportation function if performed by the offeror prior to the carrier's arrival for pickup of the materials for transportation. If loading is done by the carrier or the offeror in the presence of the carrier, it is considered a transportation function. Loading is a regulated function regardless of who does the loading.
According to the final rule, "transportation in commerce" begins when a carrier takes possession of a hazardous material for the purpose of transporting it and continues until the package containing the hazardous material arrives at the destination indicated on a shipping document, package marking, or other medium, or, in the case of a rail car, until the car arrives at a private track or siding. For a private motor carrier, transportation in commerce begins when a motor vehicle driver takes possession of a hazardous material for the purpose of transporting it and continues until the driver relinquishes possession of the package containing the hazardous material at its destination and is no longer responsible for performing functions subject to the HMR with respect to that particular package.
The only change in the applicability of the HMR from past interpretations has to do with tank car unloading. It is currently regulated whether it is done by the carrier or the consignee. To provide consistency with other modes of transportation, the unloading of rail cars at fixed facilities by consignees after delivery by the carrier will no longer be regulated. The requirement for securing the rail car against movement and to use caution signs for the protection of the rail crew remains in effect, and it applies to both loading and unloading of tank cars. Transloading of tank cars in transportation is still regulated.
In this final rule, RSPA also incorporated into the HMR provisions to allow remote monitoring of tank cars during tank car unloading, and provisions to allow tank car to stand with unloading connections attached when no product is being transferred. Previously, these situations could only be authorized by applying for a DOT Exemption.
This final rule affects shippers, carriers and consignees. The regulatory action enhance understanding of the applicability of the HMR by listing in the HMR regulated functions, and person responsible to comply.
The unloading of tank cars that contain hazardous materials performed by facility personnel at fixed facilities after the carrier leaves will no longer be a regulated function. As a result:
For more information and resources see the October 30, 2003 Federal Register and the applicability tables, below.
Applicability of the HMR
Table 1 Pre-Transportation Functions
Table 2 What is Transportation
Table 3 Functions not subject to the
requirements of the HMR