The categories that we have created in the United States to divide our
selves according to racial and ethnic characteristics are social const
ructions, not reflections of the natural world, and ar such are flexib
le and evolving. Pet we tend to regard and treat them as fixed, stable
, scientifically grounded entities. In this way they become the basis
for policy decisions and administrative actions. This article explores
the characteristics of our current ''racethnic'' categories through t
he care example of the 1990 U.S. Census and raises questions about wha
t features we highlight in creating these particular categories and wh
at silences in public discourse are enabled by them. The essay conclud
es with the implications for administrative practices of this public d
iscourse on scientifically perceived ''racethnicity'' in two areas: th
e provision of client services and internal workplace diversity.