It should work. Both are supposed to have the 4 digit tabulation blocks. I haven't tried it, although I have joined tracts. Where did you get your block polygons from? Note that the Bureau moved the 2000 geocodes onto the basic TIGER line record (record type 1) but not the basic poly record (record type A)--that still has 1990 geocodes and you have to get the 2000 codes off record type S. Actually the 2000 TAZ codes show as being on record type A, all other geocodes on that rec are documented as 1990. HTH, jim b On Wed, 16 May 2001, Jesse Jacobs wrote: ------- Jim Bash, Associate Director Internet : JBash(a)UIC.edu CAGIS (m/c 092) Phone (W): 312/996-6367 Program in Geography, Dept of Anthropology Fax : 312/996-6343 University of Illinois at Chicago 1007 W. Harrison St, Rm 2102 BSB URL : http://www.cagis.uic.edu/ Chicago, IL 60607-7138

In response to jesse jacobs: The individual TIGER blocks are on the PL CD. The problem is that they are sequenced underneath the voting district (VTD). Look for summary level code 750. It's possible that you might have situations where a block appears in more than one record, but it shouldn't happen since VTDs are supposed to be built from blocks. Hope this helps. Patty Becker At 02:37 PM 5/16/01 -0400, you wrote: ------------------------------------------------------------------------------------------------- Patricia C. (Patty) Becker 248/354-6520 APB Associates/SEMCC FAX 248/354-6645 28300 Franklin Road Home 248/355-2428 Southfield, MI 48034 pbecker(a)umich.edu