UH_MSAFP_A3 is a 4-digit numeric variable.
Codes available here.
MSA FIPS code - 1996-2004
Unicon Corporation made the following notes about this variable:
With the introduction of new geographic codes in May 2004, the concept of CMSA has been replaced by CBSA.
- All household records.
|1996 – 2004||-||-||X||-||-||-||-||-||-||-||-||-|