The U.S. Consumer Product Safety Commission (CPSC) has issued a final rule  to amend regulations defining “strong sensitizer” under the Federal Hazardous Substances Act. The revision takes effect March 17, 2014. According to CPSC,

“[t]he revised definition of ‘strong sensitizer’ eliminates redundancy, removes certain subjective factors, incorporates new and anticipated technology, places criteria for classification of strong sensitizers in the order of importance, defines criteria for ‘severity of reaction,’ and provides for the use of a weight-of-the evidence approach to determine whether a substance is a strong sensitizer.” See Federal Register, February 14, 2014.