In the Hazardous Material Regulations (HMR) at 49 CFR 173.29(a) you learn that as far as the PHMSA/USDOT is concerned, the transportation in commerce of an “empty” packaging that still contains the residue of a hazardous material is subject to the same regulations as when it was full.
Except as otherwise provided in this section, an empty packaging containing only the residue of a hazardous material shall be offered for transportation and transported in the same manner as when it previously contained a greater quantity of that hazardous material.
The regulation also identifies an exception to full regulation under the HMR for “empty” packagings with hazardous material residue and identifies the standards to be met in order for a packaging to be considered free of any hazard and therefore not subject to any of the HMR. Read the rest of this entry »





