Record Type A - Polygon Geographic Entity Codes

     Field   BV  Fmt  Type  Beg  End  Len  Description
        RT   No    L     A    1    1    1  Record Type
   VERSION   No    L     N    2    5    4  Version Number
     STATE   No    L     N    6    7    2  FIPS State Code for File
    COUNTY   No    L     N    8   10    3  FIPS County Code for File
     CENID   No    L     A   11   15    5  Census File Identification Code
    POLYID   No    R     N   16   25   10  Polygon Identification Code
      FAIR  Yes    L     N   26   30    5  FIPS 55 Code (American Indian/Alaska Native Area), 1990
      FMCD  Yes    L     N   31   35    5  FIPS 55 Code (MCD/CCD), 1990
       FPL  Yes    L     N   36   40    5  FIPS 55 Code (Place/CDP), 1990
   CTBNA90  Yes    L     N   41   46    6  Census Tract/BNA Code, 1990
     BLK90  Yes    L     A   47   50    4  Census Block Number, 1990
     CD106  Yes    R     N   51   52    2  Congressional District Number, 106th
     CD108  Yes    R     N   53   54    2  Congressional District Number, 108th
     SDELM  Yes    L     A   55   59    5  School District Code, Elementary School
        UA  Yes    L     N   60   64    5  Census Urbanized Area Code, 2000 (not filled)
     SDSEC  Yes    L     A   65   69    5  School District Code, Secondary School
     SDUNI  Yes    L     A   70   74    5  School District Code, Unified District
       TAZ  Yes    L     A   75   80    6  Traffic Analysis Zone Code, 1990
      UA90  Yes    L     N   81   84    4  Census Urbanized Area Code, 1990
   URBFLAG  Yes    L     A   85   85    1  Urban/Rural Indicator, 1990
      CTPP  Yes    L     A   86   89    4  Census Transportation Planning Package Area Code, 1990
   STATE90  Yes    L     N   90   91    2  FIPS State Code, 1990
    COUN90  Yes    L     N   92   94    3  FIPS County Code, 1990
     AIR90  Yes    L     N   95   98    4  Census American Indian/Alaska Native Area Code, 1990



