DecaBDE, or "deca," is common to printed circuits board laminates, in which it is used as a flame-retardant. While deca has long been regarded as benign in finished products, the EPA says it will support and encourage the voluntary phaseout of its manufacture and import beginning this year, with complete eradication (with limited exceptions) by Dec. 31, 2012.

The EPA also announced plans to propose late this year a rule to add commercial PBDE mixtures and the congeners they contain to a list of chemicals presenting an unreasonable risk to health or the environment.

The agency also plans to begin study of alternatives for decaBDE.

IPC, a printed circuit board industry trade group, has in the past cited the literature as supporting continued use of decaBDE. Pointing to an risk assessment of decaBDE and various environmental and human risk assessment reports, including studies by the National Academy of Sciences and the World Health Organization, IPC said the conclusions are that "the chemical presents no significant risk on these areas," adding the studies show the risks to be "insignificant."