Membership of the Working Group has evolved since 1998 as members changed jobs or companies. We acknowledge the contributions of previous members of the group, and many other people who have contributed to the development of the guidelines. 

In particular, we thank:
Lisa Bosch, Donna Curtis, Betts Field, Brad Glazer, Leni Grossman, Valerie Siddall, Gail Schulz, John Tumas, 
Erin Walls