True or False:

The constitution requires that a national census be taken every four years

Make sure to read the site rules on homework.

Have you done any research on this?

I did research on the question and can't find the answer and I didn't read any site rules

Maybe this will help...
National Policy Analysis #210: The 2000 Census: Sampling or a Straight Count? - September 1998 (http://www.englishfirst.org/census/censusncppr.htm)

Thank You that did help

Your welcome!

Please review the guidelines on asking for help with homework that can be found here:

https://www.askmehelpdesk.com/arts-literature/announcement-u-b-read-first-expectations-homework-help-board-b-u.html

Gee didn't take me long to find this:

US CODE--TITLE 13--CENSUS (http://www.access.gpo.gov/uscode/title13/title13.html)
And this:
About the US Census Bureau (http://www.census.gov/acsd/www/history.html)

On the census bureau site.