The following definitions are provided for purposes of this part:

DOE means the U.S. Department of Energy.

Elemental mercury means the element with the chemical symbol Hg and atomic number 80 in its liquid form. The form acceptable to DOE is at least 99.5% elemental mercury by volume. DOE will not accept elemental mercury in environmental media or consumer products (fluorescent lamps, batteries, etc.) or elemental mercury in manufactured items (manometers, thermometers, switches, etc.).

Metric ton means 1,000 kilograms (approximately 2,204 lbs.).