For the first time ever, lawsuits have been filed attacking the basis and legality of voluntary Threshold Limit Values set by the American Conference of Governmental Industrial Hygienists. In its 62-year history, ACGIH TLVs have never faced a legal challenge.
Anchor Glass Container Corporation and other producers and users of sodium sesquicarbonate (Trona) are seeking to prohibit ACGIH from publishing a Trona TLV.
The Refractory Ceramic Fibers Coalition has filed a suit claiming that ACGIH is a standards-setting organization and that the TLV for synthetic vitreous fiber (specifically refractory ceramic fibers) is unreasonable and unjustified.