To provide for greater accuracy in the 2000 decennial census of population, and for other purposes.

Decennial Census Improvement Act of 1996 - Requires the Bureau of the Census, in conducting the 2000 decennial census, to: (1) attempt to contact every household directly, whether by mail or in person (and allows the use of sampling as a substitute for direct contact in a particular census tract only after direct contact has been made with at least 90 percent of the households in such tract);...