The file CT2Z1099.CR4 is the final version of the 1990 census tract to
MTC 1099 zone equivalency file.

The file format is:

cols   variable
1-6    1990 Census Tract
8-9    MTC 34 Superdistrict
 11    County Code (MTC codes, 1=SF, 2=SM, etc.)
13-16  Regional Travel Analysis Zone (1099 System)
18-20  Regional Travel Analysis Zone (700 System)
*********************************************************************
<end of file>