The U.S. Environmental Protection Agency (EPA) is seeking public comment on a proposed reinterpretation of its position on polychlorinated biphenyl (PCB )- contaminated building material disposal and cleanup. The Toxic Substances Control Act (TSC A) regulations at 40 C.F.R. 761 establish PCB disposal and cleanup requirements, which depend on whether the material is classified as bulk product waste or remediation waste. Under the current regulations, PCB bulk waste products can be disposed of more quickly and less expensively than PCB remediation wastes.

PCB bulk product waste is defined in 40 CFR 761.3 as waste derived from caulk or paint containing PCB s at greater than or equal to 50 parts per million (ppm) and includes “non-liquid bulk wastes or debris from demolition of buildings and other man-made structures manufactured, coated, or serviced with PCB s.” Other PCB bulk product waste may include mastics, sealants or adhesives containing PCB s at greater than or equal to 50 ppm. PCB remediation waste is defined as “waste containing PCB s as a result of a spill, release, or other unauthorized disposal. . .,” and leaching may be considered a PCB release. EPA requests comments by March 30, 2012.