Census products use their own occupations and industries for questions about the workforce. Relating those back to SOC, ONET, and NAICS can be challenging because the categories are more intuitive to respondents and less narrowly defined. There are some existing efforts to standardize crosswalks from Census codes to other taxonomies.
|FSU-UM Census Occupation Code-Occupational Information Network (O*NET) Data Project||2000-O*NET 5.0|
This crosswalk would be inserted into OCCXOCC and related look-up tables.