IBM's product stewardship program for printer chemical emissions is described. This program ensures chemical emissions from printing products comply with standards such as California Proposition 65, OSHA Permissible Exposure Limits, and others. This is accomplished by performing environmental chamber tests that measure chemical emissions emanating from printers. An overview of IBM's chamber testing program is discussed, along with methods developed to interpret chemical emissions data obtained from environmental chamber testing of printers. International chamber testing consensus methods are identified.